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  • 1. Adlard, Kirsten N.
    et al.
    Bolam, Kate
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Jenkins, David G.
    Skinner, Tina L.
    The influence of exercise intensity on fatigue in adults: a systematic review2016In: Research to Practice 2016: Conference Proceedings, Exercise & Sports Science Australia , 2016, p. 173-Conference paper (Other academic)
  • 2.
    Adlard, Kirsten N.
    et al.
    Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Qld, Australia..
    Devin, James L.
    Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Qld, Australia..
    Jenkins, David G.
    Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Qld, Australia..
    Bolam, Kate A.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology. Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Qld, Australia..
    Aitken, Joanne F.
    Griffith Univ, Menzies Hlth Inst Queensland, Gold Coast, Qld, Australia.;Canc Council Queensland, Canc Res Ctr, Brisbane, Qld, Australia..
    Chambers, Suzanne K.
    Griffith Univ, Menzies Hlth Inst Queensland, Gold Coast, Qld, Australia.;Canc Council Queensland, Canc Res Ctr, Brisbane, Qld, Australia.;Prostate Canc Fdn Australia, Sydney, NSW, Australia.;Edith Cowan Univ, Hlth & Wellness Inst, Perth, WA, Australia.;Univ Queensland, Clin Res Ctr, Brisbane, Qld, Australia..
    Dunn, Jeffrey C.
    Griffith Univ, Menzies Hlth Inst Queensland, Gold Coast, Qld, Australia.;Canc Council Queensland, Canc Res Ctr, Brisbane, Qld, Australia.;Univ Queensland, Sch Social Sci, Brisbane, Qld, Australia..
    Skinner, Tina L.
    Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Qld, Australia..
    THE INFLUENCE OF EXERCISE INTENSITY ON FATIGUE IN COLORECTAL CANCER SURVIVORS: A RANDOMIZED CONTROLLED TRIAL2016In: Asia-Pacific Journal of Clinical Oncology, ISSN 1743-7563, E-ISSN 1743-7563, Vol. 12, no S5, p. 78-78, article id 44Article in journal (Other academic)
  • 3.
    Aggerholm, K.
    et al.
    Norwegian School of Sport Sciences, Norway.
    Standal, O.
    Oslo and Akershus University College of Applied Sciences, Norway.
    Barker, D. M.
    University of Gothenburg.
    Larsson, Håkan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogisk idrottsforskning.
    On practising in physical education: outline for a pedagogical model.2018In: Physical Education and Sport Pedagogy, ISSN 1740-8989, E-ISSN 1742-5786, Vol. 23, no 2, p. 197-208Article in journal (Refereed)
    Abstract [en]

    Background: Models-based approaches to physical education have in recent years developed as a way for teachers and students to concentrate on a manageable number of learning objectives, and align pedagogical approaches with learning subject matter and context. This paper draws on Hannah Arendt’s account ofvita activato map existing approaches to physical education as oriented towards: (a) health and exercise, (b) sport and games, and (c) experience and exploration.

    Purpose: The aim of the paper is to outline a new pedagogical model for physical education:a practising model. We argue that the form of human activity related to practising is not well represented in existing orientations and models. To sustain this argument, we highlight the most central aspects of practising, and at the same time describe central features of the model.

    Relevance and implications: The paper addresses pedagogical implications the practising model has for physical education teachers. Central learning outcomes and teaching strategies related to four essential and ‘non-negotiable’ features of the practising model are discussed. These strategies are: (1) acknowledging subjectivity and providing meaningful challenges, (2) focusing on content and the aims of practising, (3) specifying and negotiating standards of excellence and (4) providing adequate time to practising.

    Conclusion: The practising model has the potential to inform new perspectives on pedagogical approaches, and renew and improve working methods and learning practices, in physical education. 

  • 4.
    Ainegren, Mats
    et al.
    Mid Sweden University.
    Jensen, Kurt
    University of Southern Denmark.
    Rosdahl, Hans
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Breathing resistance in automated metabolic systems is high in comparison with the Douglas Bag method and previous recommendations2018In: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, ISSN 1754-3371, Vol. 232, no 2, p. 122-130Article in journal (Refereed)
    Abstract [en]

    The purpose of this study was to investigate the resistance to breathing in metabolic systems used for the distribution and measurement of pulmonary gas exchange. A mechanical lung simulator was used to standardize selected air flow rates (V·, L/s). The delta pressure (?p, Pa) between the ambient air and the air inside the equipment was measured in the breathing valve?s mouthpiece adapter for four metabolic systems and four types of breathing valves. Resistance for the inspiratory and expiratory sides was calculated as RES?=?(?p/V·)?Pa/L/s. The results for resistance showed significant (p?<?0.05) between-group variance among the tested metabolic systems, breathing valves, and between most of the completed V·. The lowest resistance among the metabolic systems was found for a Douglas Bag system which had approximately half of the resistance compared to the automated metabolic systems. The automated systems were found to have higher resistance even at low V· in comparison with previous findings and recommendations. For the hardware components, the highest resistance was found for the breathing valves, while the lowest resistance was found for the hoses. The results showed that resistance in metabolic systems can be minimized through conscious choices of system design and hardware components.

  • 5.
    Alfvén, G
    et al.
    Karolinska institutet.
    Grillner, S
    Karolinska institutet.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Karolinska institutet.
    Children with chronic stress-induced recurrent muscle pain have enhanced startle reaction.2017In: European Journal of Pain, ISSN 1090-3801, E-ISSN 1532-2149, Vol. 21, no 9, p. 1561-1570Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Children with recurrent pain of negative chronic stress origin from different locations have a characteristic pattern of tender points in the temporal, trapezoid, great pectoral and abdominal muscles. We tested the hypothesis that the startle reaction is activated in these children and that some of the startle-activated muscles are related to the tender point pattern and the recurrent pain.

    METHODS: In children/adolescents, aged 10-17 years, 19 with recurrent psychosomatic pain (PAIN) and 23 controls (CON) we measured and analysed resting activity and acoustic startle response with electromyography (EMG) for the muscles involved in the pattern of tender points and also the lumbar erector spinae.

    RESULTS: The PAIN group showed higher resting activity and higher acoustic startle response values than the CON group for all six muscles together regarding the mean amplitude in the initial 200 ms, and during the burst of activity, and longer burst duration and shorter burst latency. For PAIN versus CON, all separate muscles showed generally higher values of EMG amplitudes and burst durations, and shorter latencies for the burst onset in all measures; with significance or strong trends for several parameters and muscles.

    CONCLUSION: For the first time in children with recurrent psychosomatic pain, increased resting activity and potentiated startle response were demonstrated in the muscles involved in the stress tender point pattern.

    SIGNIFICANCE: This study demonstrates in adolescents how recurrent pain of negative stress origin from the head, stomach, back and chest is related to increased startle reaction and increased muscular tension in these regions. This study contributes to the understanding of the mechanisms underlying the global burden of recurrent pain.

  • 6.
    Alfvén, Gösta
    et al.
    Clintec, Karolinska Institutet.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Institutionen för Neurovetenskap, Karolinska Institutet.
    Barn med stressutlöst smärta hade kraftigare startle-reflex2017In: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, article id 114:ERZXArticle in journal (Other academic)
    Abstract [sv]

    Återkommande stressutlöst smärta är ett närmast vardagligt fenomen. Avsaknaden av enkla test inom sjukvården för att diagnostisera stressutlöst smärta medför diagnostiska svårigheter och därmed svårigheter med handläggning. Ett grundläggande problem är att förståelse för den patofysiologiska processen bakom långvarig stressutlöst smärta saknas.

    Tidigare studier från samma forskare har visat att barn och tonåringar med långvarig stressutlöst smärta diagnostiserad enligt fastställda kriterier utvecklar ett karakteristiskt mönster av ömma punkter (tender points) i muskler på platser för bland annat huvudvärk, skuldersmärtor och buksmärtor nära naveln. Dessa muskler ingår i startle-reflexen, en neuromuskulär försvarsreaktion som utlöses från en kärna i hjärnstammen. Startle-reflexen startar med en blinkreflex och följs på mindre än en tiondels sekund av framåtböjning av huvudet och en nedstigande böjningsreaktion av kroppen, som sträcker sig ned till benen. Stress kan bland annat via amygdala leda till förstärkt och lättare utlöst startle-reflex.

    Vår hypotes var att startle-reflexen hos individer med stressutlöst smärta är mer lättutlöst och ger ett högre svar än hos friska. I en kontrollerad studie ingick 19 individer i åldern 10–17 år som hade stressutlöst återkommande smärta enligt fastställda kriterier. Gruppen jämfördes med 23 friska i jämförbar ålder, av motsvarande kön och utan smärtbesvär. Under likvärdiga, lugna förhållanden utlöstes startle-reflex vid upprepade starka auditiva signaler på 105 dB via hörlurar, och EMG registrerades från ögonblinkningsmuskeln (orbicularis oculi), tinningmuskel (temporalis), nacknära skuldermuskel (trapezius), stora bröstmuskeln (pectoralis major), bukmuskel (rectus abdominis) samt ryggmuskel (lumbala erector spinae).

    I smärtgruppen var muskelspänningen signifikant förhöjd i ovan nämnda muskler. Startle-reflexen utlöstes också lättare och tidigare, var kraftigare och varade längre. Muskel­aktivitetsgraden efter ljudstimuli visade i smärtgruppen signifikant högre medelamplitud än i kontrollgruppen för alla sex muskler och de åtta upprepade startle-responserna sammantagna. Aktuell forskning om möjliga muskulära och centralnervösa smärtmekanismer presenteras i artikeln.

    För första gången har ökad muskelspänning och förstärkt startle-reaktion påvisats med EMG hos barn/ungdomar med återkommande stressutlöst smärta i ett mönster som sammanfaller med mönstret av ömma punkter och smärtlokalisation. Vår förhoppning är att dessa fynd ska stimulera till fortsatt forskning och förbättra klinisk praxis.

    Alfvén, G, Grillner, S, Andersson E. Eur J Pain. Epub 4 maj 2017. doi: 10.1002/ejp.1057

  • 7.
    Almqvist, Jonas
    et al.
    Uppsala universitet.
    Meckbach, Jane
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogisk idrottsforskning.
    Öhman, Marie
    Örebro universitet.
    Quennerstedt, Mikael
    Örebro universitet.
    How Wii Teach Physical Education and Health2016In: SAGE Open, ISSN 2158-2440, E-ISSN 2158-2440, Vol. 6, no 4, p. 1-8Article in journal (Refereed)
    Abstract [en]

    The use of educational computer games in physical education (PE) has become more popular in recent years and has attracted research interest. The aim of the article is to investigate how physical activities and images of the human body are offered by the game. The results show how the “teacher” constituted in the games is one who instructs and encourages the players to exercise and think about their bodies, but not a “teacher” who can help students to investigate, argue, or discuss images of health and the human body. We argue that the use of a wide range and variety of ways of teaching would make the teaching richer and offer a deeper understanding about the body and health.

  • 8.
    Almqvist, Jonas
    et al.
    Uppsala universitet.
    Meckbach, Jane
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogik, idrott och fritidskultur.
    Öhman, Marie
    Örebro universitet.
    Quennerstedt, Mikael
    Örebro universitet.
    Learning and active video gaming in school: How wii teach Physical Education and Health: Contribution to symposium Learning and active video gaming in school at BERA 20142014Conference paper (Refereed)
    Abstract [en]

    Background

    The potential use of exergames in Physical Education and Health is surrounded by a growing discussion among practitioners, policy makers and researchers focusing on different expectations about the games. In this discussion there is, however, a need to further include issues about the learning content offered by these games, how the content is expected to be taught and about the potential consequences the use of games may have for learning and socialisation. This study focus on how meanings about health and the human body are offered by the game: What kind of teaching is delegated to the artifact when used in Physical Education and Health?

    Focus of inquiry

    The aim of this article is to investigate how images of health and the human body and are taught by using exergames.

    Analytical framework and Research methods

    The empirical study builds on the use of an analytical tool called “Epistemological move analysis”. Studies of teaching and learning have shown how teachers use different kinds of actions (for example instructive, confirming, re-orienting, generative, re-constructive and evaluative moves) in order to try to direct the meaning making in educational settings. In this study, these categories are used, developed and specified in the context of teaching in Physical Education and Health. The empirical material used consists of video recordings from sessions where the games Wii Fit Plus and EA Sports Active were played.

    Research findings

    The results of the analyses show how the games offer different kinds of epistemological moves: Instructive moves about the fit body and how to play the game, re-orienting moves used in order to help the players to modify their action towards a more relevant and effective way, generative moves used to help the players to think about how to play the game and confirming move about the players’ gaming. In sum, the “teacher” constituted in the game is a teachers who instructs, confirms and encourages the players to move and exercise their bodies. But it is not a teacher who, in contrast to teaching in other contexts, is able to help the learners to make investigations or to participate in argumentation and discussion about for example images of health and the human body. Teaching in these games is constituted as a behavioral modification focused on an idea about a pre-defined and ideal body not expected to be discussed in education.

  • 9.
    Almqvist, Jonas
    et al.
    Uppsala universitet.
    Öhman, Marie
    Örebro universitet.
    Meckbach, Jane
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogik, idrott och fritidskultur.
    Quennerstedt, Mikael
    Örebro universitet.
    What do Wii teach in PE?2012Conference paper (Refereed)
    Abstract [en]

    In society, video- and computer games are often pointed out as risk factors in relation to physical inactivity, sedentary behaviour as well as increasing levels of obesity. At the same time, computers are an important source of knowledge where IT-competence and IT-experience provide pronounced advantages in society.

    In the middle of this paradox a new type of videogames is introduced, where body movement and physical activity constitute the central element. These games, so called exergames or active video games, are games where physical movement is involved in the game through the use of for example balance-boards, step-up boards and dance-pads. Exergames are now more and more put forward in several countries as interesting tools to use in physical education in order to stimulate young people to be physically active.

    In a recent review and synthesis of research on video games and health, Papastergiou (2009) strongly argues that videogames can offer ”potential benefits as educational tools for Health Education and Physical Education, and that those games may improve young people’s knowledge, skills, attitudes and behaviours in relation to health and physical exercise” (Papastergiou, 2009, p 603). However, Vander Schee and Boyles (2010) argue that exergames rather should be seen as a body pedagogy producing certain narrow meanings about health, and that the uncritical implementation of exergames in school is a problematic way to place commercial products in school. Consequently, there are differences in views regarding exergames in educational settings that are worth paying attention to in research about people’s learning about the body, physical activity and health.

    The aim of this paper is to investigate how images of the human body are expected to be learned when using exergames.

    The use of artifacts – physical objects made by humans – is a central part of human life. In fact, there are many activities that would not be possible to perform without the use of them. In schools, students learn to use paper and pencils, computers, vaulting-horses, footballs and so on. How and why artifacts are supposed to be used in educational settings is however not given beforehand (Cuban 1986). The use of artifacts mediates certain meanings about the view of learning and the goals and choices of content in education (Almqvist 2005, Quennerstedt et al in press).

    In this paper, we will use discourse analytical strategies in order to analyse how meanings about the body are expected to be learned when playing exergames. The discourse analytical strategies involve an interest in how processes of discourse constitute how we experience or relate to ourselves as well as our environment (Laclau & Mouffe 1985). Discourses constitute what is possible to say or do as partial and temporal fixations (Foucault 1980). These fixations are imbued with power, values and ideologies. As Evans and colleagues argue: “/…/ health beliefs, perceptions and definitions of illness are constructed, represented and reproduced through language that is culturally specific, ideologically laden and never value free” (Evans et al 2008 p 46).

    To investigate what these games offer we have explored the manuals, the content, the animations of the games as well as the instructions and comments offered during game play. The empirical material consists of exergames most commonly used in schools: Wii fit and Wii sports (sports active).

    In the discourse analysis we have explored what is taken for granted in the empirical material in relation to other possible ways to argue. In this way we can explore what is included and excluded in the games and what is possible to think and act in relation to statements concerning the body.

    The analysis shows how the logic of the game, its animations, instructions and feedback to the player, constitutes the ideal body as a physically active, well-balanced, slim and strong body. The use of the game, the balance board and the hand control, makes it possible to measure and register how the player follows this logic. The analysis also shows how the way the player is supposed to learn about the body is strongly influenced by behaviorism. In the paper we argue that this way of learning about the body is narrow and limited and that it is important to critically discuss the effects of the use of these games in schools.

    References

    Almqvist, Jonas (2005). Learning and artefacts. On the use of information technology in educational settings. Uppsala: Acta Universitatis Upsaliensis.

    Cuban, Larry (1986). Teachers and machines. The classroom use of technology since 1920. New York: Teachers College Press.

    Evans, John, Rich Emma & Davies Bryan (2008). Education, disordered eating and obesity discourse: Fat fabrications. London: Routledge

    Foucault, Michel (1980). Power/knowledge.  Selected interviews & other writings 1972-1977. New York: Pantheon Books.

    Laclau, Ernesto & Mouffe, Chantal (1985). Hegemony and socialist strategy. Towards a radical democratic politics. London: Verso.

    Papastergiou, Marina (2009). Exploring the potential of computer and video games for health and physical education: A literature review. Computers & Education, 53(3), 603-622.

    Quennerstedt, Mikael, Almqvist, Jonas & Öhman, Marie (in press). Keep your eye on the ball. Investigating artifacts in physical education. Interchange.

    Vander Schee, Carolyn J. & Boyles, Deron (2010): ‘Exergaming,’ corporate interests and the crisis discourse of childhood obesity. Sport, Education and Society, 15(2), 169-185.

  • 10. Alvehus, Malin
    et al.
    Boman, Niklas
    Söderlund, Karin
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's and Mats Börjesson's research group.
    Svensson, Michael B
    Burén, Jonas
    Metabolic adaptations in skeletal muscle, adipose tissue, and whole-body oxidative capacity in response to resistance training.2014In: European Journal of Applied Physiology, ISSN 1439-6319, E-ISSN 1439-6327, Vol. 114, no 7, p. 1463-1471Article in journal (Refereed)
    Abstract [en]

    PURPOSE: The effects of resistance training on mitochondrial biogenesis and oxidative capacity in skeletal muscle are not fully characterized, and even less is known about alterations in adipose tissue. We aimed to investigate adaptations in oxidative metabolism in skeletal muscle and adipose tissue after 8 weeks of heavy resistance training in apparently healthy young men.

    METHODS: Expression of genes linked to oxidative metabolism in the skeletal muscle and adipose tissue was assessed before and after the training program. Body composition, peak oxygen uptake (VO2 peak), fat oxidation, activity of mitochondrial enzyme in muscle, and serum adiponectin levels were also determined before and after resistance training.

    RESULTS: In muscle, the expression of the genes AdipoR1 and COX4 increased after resistance training (9 and 13 %, respectively), whereas the expression levels of the genes PGC-1α, SIRT1, TFAM, CPT1b, and FNDC5 did not change. In adipose tissue, the expression of the genes SIRT1 and CPT1b decreased after training (20 and 23 %, respectively). There was an increase in lean mass (from 59.7 ± 6.1 to 61.9 ± 6.2 kg), VO2 peak (from 49.7 ± 5.5 to 56.3 ± 5.0 ml/kg/min), and fat oxidation (from 6.8 ± 2.1 to 9.1 ± 2.7 mg/kg fat-free mass/min) after training, whereas serum adiponectin levels decreased significantly and enzyme activity of citrate synthase and 3-hydroxyacyl-CoA dehydrogenase did not change.

    CONCLUSION: Despite significant increases in VO2 peak, fat oxidation, and lean mass following resistance training, the total effect on gene expression and enzyme activity linked to oxidative metabolism was moderate.

  • 11.
    Andersen Eikje, Cleng
    et al.
    Department of Sports, physical education and outdoor Studies, University college of Southeast Norway, Bø, Norway.
    Horgen, André
    Department of Sports, physical education and outdoor Studies, University college of Southeast Norway, Bø, Norway.
    Arnegård, Johan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    The organizing and regulation of mountain guiding in Scandinavia 1820–2016, with a glance at the Alps2019In: Sport in Society: Cultures, Media, Politics, Commerce, ISSN 1743-0437, E-ISSN 1743-0445, Vol. 22, no 4, SI, p. 555-572Article in journal (Refereed)
    Abstract [en]

    In this article, we study how mountain guiding was organized and regulated in Scandinavia and the Alps between 1820 and 2015 and focus on the most important di erences and similarities in Scandinavia, and between Scandinavia and the Alps. We conclude that Switzerland and Chamonix (France) represent two di erent systems in the Alps during the nineteenth century. However, through the emergence of national and international guide unions the regulation of mountain guiding in the Alps today appears uni ed, with a close connection between national regulation and mountain guide unions. In Scandinavia, Norway and Sweden historically had similar practices organizing and regulating mountain guiding, where a relatively strong layman tradition emerged during the 1960s and 1970s. In 2008, legal decisions led Sweden to change its system to match the Alp model, while Norway held on to the layman tradition. This leaves mountain guiding in Norway as a distinctly less regulated eld than in France, and Switzerland, as in and Sweden. 

  • 12. Andersson, B
    et al.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Arnell, J
    Bergenfeldt, T
    Forsberg, A
    Amer-Wåhlin, I
    Ljung, B
    Magnegård, T
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Olausson, K
    Olsson Sundelin, T
    Sarac, L
    Sandberg, H
    Ökad fysisk aktivitet viktigt för att bromsa sjukfrånvaron2015In: Dagens nyheter, DN, article id 27 novArticle in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Försäkringskassans rapport (DN Debatt 27/11 2015) visar att sjukfrånvaron fortsätter att öka och lovar att kraftsamla i sjukförsäkringshandläggningen. Men, precis som Försäkringskassan skriver, kommer det inte att räcka för att nå regeringens mål. Regeringens åtgärdsprograms program i sju punkter för att minska sjukfrånvaron saknar en viktig komponent. Det måste kompletteras med fysisk aktivitet som ett åttonde område för att trenden ska kunna brytas, skriver 13 debattörer.

  • 13.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Institutionen för Neurovetenskap, Karolinska Institutet.
    Fysisk aktivitet är lika bra som samtalsterapi eller läkemedel vid mild till måttlig depression2016In: / [ed] Svensk förening för fysisk aktivitet och Idrottsmedicin, SFAIM, 2016Conference paper (Other academic)
  • 14.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Physical fitness: I. Muscle strength II. Aerobic fitness: Muscle oxygen uptake and heart rate2014In: Women and sport, Stockholm: SISU idrottsböcker , 2014Chapter in book (Other academic)
    Abstract [en]

    Improved muscle strength and aerobic fitness are of great importance in many sports and are also associated with increased life expectancy and a reduced incidence of a number of diseases. In this chapter, we will discuss some of the factors that influence muscle strength and aerobic fitness, including sex-related factors. The way physical fitness is measured is also important when making comparisons. An increased understanding of the assessment of strength and aerobic fitness may inspire fruitful improvements in practical test and training programs in various sport and health contexts.

  • 15.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Riktlinjer för prevention och behandling vid depression och ångestsyndrom enligt FYSS 20172018Conference paper (Other academic)
  • 16.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Rygg-, buk- och höftmuskulatur - styrka, träningsövningar och stabilitet.2001In: Svensk Idrottsforskning: Organ för Centrum för Idrottsforskning, ISSN 1103-4629, no 3, p. 43-49Article in journal (Other academic)
  • 17.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Rygg- och bukmuskelträning samt bålstabilitet1998In: Svensk Idrottsforskning: Organ för Centrum för Idrottsforskning, ISSN 1103-4629, no 4, p. 4-7Article in journal (Other academic)
  • 18.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Institutionen för Neurovetenskap, Karolinska Institutet.
    Startlereflexens betydelse för psykosomatisk smärta. En EMG-studie på barn med stressutlöst återkommande smärta.2018Conference paper (Other academic)
    Abstract [sv]

    Startlereflexens betydelse för psykosomatisk smärta. En EMG-studie på barn med stressutlöst återkommande smärta. 

    Startle-reflexen är en försvarsreflex som beror på upplevelsen av fara vid plötsligt stark stimulering och hänger i hop med flykt- och kampresponsen. I praktiken innebär den att man hajar eller hoppar till. Reflexen aktiveras vid överraskning. Den börjar med en blinkreflex i ögonen och följs på mindre än en tiondels sekund av framåtböjning av huvudet och en nedåtgående böjningsreaktion av kroppen som sträcker sig ned till benen.

    Via muskelaktivitetsregistrering på ett flertal muskler i kroppen sågs under ljudstimuli i studiens smärtgrupp att reflexen utlöstes lättare och tidigare. Den var också kraftigare och varade längre jämfört med en motsvarande frisk kontrollgrupp.

     

  • 19.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences. Institutionen för Neurovetenskap, Karolinska Institutet.
    Äldre blir starkare i GIHs hälsoprojekt2015In: Äldre i centrum : tidskrift för aktuell äldreforskning, ISSN 1653-3585, no 4, p. 2p. 24-25Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Ett lyckosamt projekt för seniorer 65 år och äldre har sedan 2005 pågått på Gymnastik- och idrottshögskolan, GIH. Deltagarna tränar kostnadsfritt och utför hälsotester med GIH:s studenter på hälsopedagogprogrammet. Syftet är att utveckla metoder som kan bidra till ökad fysisk aktivitet och fysisk kapacitet som ett led i sänkta vård- och omsorgskostnader och ökat välmående hos de äldre.

  • 20.
    Andersson, Eva A
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Analys av träningsövningar för buk- och höftböjarmuskulatur1994In: Svensk Idrottsforskning: Organ för Centrum för Idrottsforskning, ISSN 1103-4629, no 3, p. 16-18Article in journal (Other academic)
  • 21.
    Andersson, Eva A
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    EMG and strength in trunk and hip muscles1997Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The overall aim of this thesis was to study the myouelectric activity of all major muscles involved in the movements and stabilization of the trunk, pelvis and hips during training exercises, postures, motor tasks, maximal strength performance and locomotion. By use of ultra-sound, EMG electrodes could be guided safely and accurately into muscles situated even close to the spinal column, such as psoas, quadratus lumborum and deep parts of erector spinae.

         A task specific variation in activation levels were seen between muscle synergies, as well as between individual muscles within a synergy. Selective engagement of the abdominal muscles could be achieved in trunk flexion sit-ups, that is lifting only the upper trunk from the floor. An even higher activation of abdominal muscles was needed for static stabilization of the trunk and pelvis during hip flexion sit-ups, whereas single leg lifts were performed without involvement of the abdominal muscles. A selective activation of either the iliacus or psoas muscle was observed, for example in certain types of training exercises and in walking and running. Applying bending moments to the spine, resulted in a grading of the muscle activation response according to mechanical advantage, that is highest in the quadratus lumborum in lateral loading and in the superficial erector spinae in ventral loading. An exception was the most forward flexed position in standing where the superficial erector spinae "relaxed" but quadratus lumborum remained active. In general, the level of EMG in maximal efforts was maintained at the same high level irrespective of position in the range of motion, despite a marked variation in strength output. This position-dependency, as well as the strength values as such, varied in a specific way in groups of athletes, related to previous background.

         These data contribute to the understanding of muscle function and motor control of the trunk , pelvis and hips. They are also of relevance when evaluating and designing tests and training programs in rehabilitation and sport contexts as well as for improving biomechanical models of spinal loading.  

  • 22.
    Andersson, Eva A
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    EMG and strength in trunk and hip muscles1997In: Svensk Idrottsforskning: Organ för Centrum för Idrottsforskning, ISSN 1103-4629, no 1, p. 48-Article in journal (Other academic)
  • 23.
    Andersson, Eva A.
    et al.
    Department of Neuroscience, Karolinska Institutet.
    Defaire, Gi
    Swedish School of Sport and Health Sciences, GIH.
    Hultgren, Staffan
    Swedish School of Sport and Health Sciences, GIH.
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH.
    Oddsson, Kristjan
    Swedish School of Sport and Health Sciences, GIH.
    Olin, Hedvig
    Swedish School of Sport and Health Sciences, GIH.
    Strand, Leif
    Swedish School of Sport and Health Sciences, GIH.
    Wahlgren, Lina
    Swedish School of Sport and Health Sciences, GIH.
    Wedman, Ingemar
    Swedish School of Sport and Health Sciences, GIH.
    Ekblom, Örjan
    Swedish School of Sport and Health Sciences, GIH.
    Physical activity for persons with obesity—a health project reported2008In: Forum on Public Policy Online, ISSN 1938-9809, Vol. 4, no SpringArticle in journal (Refereed)
    Abstract [en]

    In public health contexts, increased physical activity habits and fitness (aerobic and strength capacities) are positively related for promoting health and preventing  and treating common diseases/problems, including obesity and overweight. A strongly graded inverse association between physical activity and obesity has been shown both for adults and children. However, a lower mortality risk has been shown for those with greater weight but good aerobic capacity than for those of recommended weight but less fit. On the basis of a health project with physical activity for persons with or without obesity, the paper discusses evidence-based methods for promoting physical activity. General guidelines for the amount of physical activity for persons are described, as are the numerous physiological and medical advantages of physical activity. The economic benefits are also illustrated. The paper exemplifies methods of measuring physical activity habits and physical fitness. These two factors must be observed when showing improvements in public-health contexts, including groups with obesity.

     

  • 24.
    Andersson, Eva A
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology. Karolinska institutet.
    Frank, Per
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology. Karolinska institutet.
    Pontén, Marjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Ekblom, Björn
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Ekblom, Maria
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology. Karolinska institutet.
    Moberg, Marcus
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Sahlin, Kent
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People.2017In: Journal of Visualized Experiments, ISSN 1940-087X, E-ISSN 1940-087X, no 125Article in journal (Refereed)
    Abstract [en]

    This protocol describes the simultaneous use of a broad span of methods to examine muscle aerobic capacity, glucose tolerance, strength, and power in elderly people performing short-term resistance training (RET). Supervised progressive resistance training for 1 h three times a week over 8 weeks was performed by RET participants (71±1 years, range 65-80). Compared to a control group without training, the RET showed improvements on the measures used to indicate strength, power, glucose tolerance, and several parameters of muscle aerobic capacity. Strength training was performed in a gym with only robust fitness equipment. An isokinetic dynamometer for knee extensor strength permitted the measurement of concentric, eccentric, and static strength, which increased for the RET group (8-12% post- versus pre-test). The power (rate of force development, RFD) at the initial 0-30 ms also showed an increase for the RET group (52%). A glucose tolerance test with frequent blood glucose measurements showed improvements only for the RET group in terms of blood glucose values after 2 h (14%) and the area under the curve (21%). The blood lipid profile also improved (8%). From muscle biopsy samples prepared using histochemistry, the amount of fiber type IIa increased, and a trend towards a decrease in IIx in the RET group reflected a change to a more oxidative profile in terms of fiber composition. Western blot (to determine the protein content related to the signaling for muscle protein synthesis) showed a rise of 69% in both Akt and mTOR in the RET group; this also showed an increase in mitochondrial proteins for OXPHOS complex II and citrate synthase (both ~30%) and for complex IV (90%), in only the RET group. We demonstrate that this type of progressive resistance training offers various improvements (e.g., strength, power, aerobic capacity, glucose tolerance, and plasma lipid profile).

  • 25.
    Andersson, Eva A
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Grundström, Helen
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Diverging intramuscular activity patterns in back and abdominal muscles during trunk rotation.2002In: Spine, ISSN 1528-1159, Vol. 27, no 6, p. E152-60Article in journal (Refereed)
    Abstract [en]

    STUDY DESIGN: An intramuscular electromyographic study was performed on trunk rotations during sitting and standing. OBJECTIVE: The aim was to provide new information on activation levels for deep trunk muscles in various unresisted and resisted trunk rotations. SUMMARY AND BACKGROUND DATA: Frequent daily trunk twisting and decreased maximal strength during trunk rotation have been associated with low back pain or sciatic pain. However, the involvement of deep trunk muscles during different trunk rotations is relatively unknown. METHODS: Ten healthy subjects participated. Fine-wire electrodes were inserted, under ultrasound guidance, into psoas, quadratus lumborum, the superficial medial lumbar erector spinae (ES-s, multifidus) and its deep lateral portion (ES-d, iliocostalis), iliacus, rectus abdominis, obliquus externus, and obliquus internus. RESULTS: The highest involvement for all muscles was observed on the ipsilateral side, in maximal trunk twists with shoulder resistance, except obliquus externus, which showed a dominant contralateral side, and rectus abdominis, which was little activated in all rotations. In contrast, maximal trunk twist without shoulder resistance, i.e., freely performed, resulted generally in lower levels for all muscles involved and in a shift of side dominance for the lumbar muscles quadratus lumborum, psoas, and ES-s. CONCLUSIONS: During trunk rotations the activity patterns for various trunk muscles could drastically change, and even be the opposite, between the two body sides, within the same type of task, depending on several factors such as initial position, effort level, sitting or standing, and external shoulder resistance.

  • 26.
    Andersson, Eva A
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Lundahl, Gunilla
    Ortivus AB, Danderyd.
    Wecke, Liliane
    Institutionen för Kardiologi, KI, KS.
    Lindblom, Ida
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Maximal Aerobic Power versus Performance in Two Aerobic Endurance Tests among Young and Old Adults2011In: Gerontology, ISSN 0304-324X, E-ISSN 1423-0003, no Aug, p. 1-11Article in journal (Refereed)
    Abstract [en]

    Background: Aerobic fitness is of great value for reducing risk of mortality and cardiovascular diseases. Objective: This study evaluated the performance in and correlations between a new test (five-minute pyramid test, 5MPT), the six-minute walk-test (6MWT) and maximal oxygen uptake (VO(2max)) among old and young adults. Methods: Forty-four habitually active adults (females and males), 23 old (64-79 years) and 21 young (20-32 years) participated. In the 5MPT, the participants moved back and forth along a short walkway (5.5 m) over boxes (height: 'old people' 0.42 m, 'young people' 0.62 m) arranged like an elongated step pyramid for 5 min. Power in the pyramid test (5MPT(power)) was calculated as the product of numbers of laps, body weight, gravity and highest box level divided by time. A 6MWT and a maximal cycle ergometer test for direct measurements of VO(2max) were also performed. In all tests heart rate, with on-line electrocardiography, and perceived exertion were recorded. Results: There was a strong correlation between the 5MPT(power) and VO(2max) for the entire group studied (r = 0.98), and each of the four subgroups old and young females and males separately (r = 0.78-0.98). Contrary to several earlier studies, especially involving people with various diseases, the present data showed that 6MWT cannot be used to predict VO(2max) among old females and young adults. The correlation with VO(2max) was weaker for the 6MWT than for the 5MPT(power). The relative performance values for the old compared to the young (ratio old/young × 100) were considerably lower in 5MPT(power) and VO(2max) (47-55%) than in distance and 'work' in the 6MWT (82-86%). Conclusions: The results, with age and gender variations, can be valuable information in health-fitness contexts, since measuring physical aerobic capacity is very significant in connection with risk evaluations of mortality and various diseases. The 5MPT is a rapid, functional, easy and inexpensive tool for predicting assessed maximal aerobic power.

  • 27.
    Andersson, Eva A
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Ma, Z
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Relative EMG levels in training exercises for abdominal and hip flexor muscles.1998In: Scandinavian Journal of Rehabilitation Medicine, ISSN 0036-5505, E-ISSN 1940-2228, Vol. 30, no 3, p. 175-83Article in journal (Refereed)
    Abstract [en]

    The main purpose of our study was to compare systematically EMG levels in sub-maximal training exercises for the trunk and hip flexor muscles with those voluntarily attainable in corresponding situations. Six healthy subjects performed three types of standardized training exercises, whose static positions, movement velocity and range of motion were reproduced during maximal voluntary isokinetic strength tests. EMG was recorded with wire electrodes from the iliacus muscle and with surface electrodes from the rectus femoris, sartorius, rectus abdominis, obliquus externus and internus muscles. The relative EMG values demonstrated a task dependency which could differ between individual muscles. The maximal voluntary activation levels were relatively constant across conditions. Exceptions were present, particularly for the rectus femoris and iliacus muscles. These findings highlight the consequences of using different methods of normalizing EMG. The relative EMG values presented may serve as guidelines when selecting training exercises for specific trunk and hip flexor muscles in sports and rehabilitation.

  • 28.
    Andersson, Eva A
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Ma, Z
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Abdominal and hip flexor muscle activation during various training exercises.1997In: European Journal of Applied Physiology and Occupational Physiology, ISSN 0301-5548, E-ISSN 1432-1025, Vol. 75, no 2, p. 115-23Article in journal (Refereed)
    Abstract [en]

    The purpose of this study was to provide objective information on the involvement of different abdominal and hip flexor muscles during various types of common training exercises used in rehabilitation and sport. Six healthy male subjects performed altogether 38 different static and dynamic training exercises trunk and hip flexion sit-ups, with various combinations of leg position and support, and bi- and unilateral leg lifts. Myoelectric activity was recorded with surface electrodes from the rectus abdominis, obliquus externus, obliquus internus, rectus femoris, and sartorius muscles and with indwelling fine-wire electrodes from the iliacus muscle. The mean electromyogram amplitude, normalised to the highest observed value, was compared between static and dynamic exercises separately. The hip flexors were highly activated only in exercises involving hip flexion, either lifting the whole upper body or the legs. In contrast, the abdominal muscles showed marked activation both during trunk and hip flexion sit-ups. In hip flexion sit-ups, flexed and supported legs increased hip flexor activation, whereas such modifications did not generally alter the activation level of the abdominals. Bilateral, but not unilateral, leg lifts required activation of abdominal muscles. In trunk flexion sit-ups an increased activation of the abdominal muscles was observed with increased flexion angle, whereas the opposite was true for hip flexion sit-ups. Bilateral leg lifts resulted in higher activity levels than hip flexion sit-ups for the iliacus and sartorius muscles, while the opposite was true for rectus femoris muscles. These data could serve as a basis for improving the design and specificity of test and training exercises.

  • 29.
    Andersson, Eva A
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Intramuscular EMG from the hip flexor muscles during human locomotion.1997In: Acta Physiologica Scandinavica, ISSN 0001-6772, E-ISSN 1365-201X, Vol. 161, no 3, p. 361-70Article in journal (Refereed)
    Abstract [en]

    The purpose was to investigate the activation pattern of five major hip flexor muscles and its adaptation to changing speed and mode of progression. A total of 11 healthy subjects performed walking and running on a motor-driven treadmill at speeds ranging from 1.0 to 6.0 m s-1. Intramuscular fine-wire electrodes were used to record myoelectric signals from the iliacus, psoas, sartorius, rectus femoris and tensor fascia latae muscles. The basic pattern, with respect to number of activation periods, remained the same irrespective of speed and mode of progression. However, differences in the relative duration and timing of onset of activation occurred between individual muscles. Over the speed range in walking, a progressively earlier onset was generally seen for the activation period related to hip flexion. Changes in EMG amplitude were measured in the iliacus and psoas muscles and showed a marked increase and difference between walking and running at speeds above 2.0 m s-1. Thus, the alternating flexion-extension movements at the hip during locomotion appear to be governed by a rather fixed 'neural program' which normally only needs minor modulations to accomplish the adjustments accompanying an increase in speed of progression as well as a change from walking to running.

  • 30.
    Andersson, Eva A.
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Rönquist, Gustaf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Oddsson, Kristjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Ekblom, Örjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Äldre blir starkare av Hälsoprojektet2013In: Svensk Idrottsforskning: Organ för Centrum för Idrottsforskning, ISSN 1103-4629, Vol. 22, no 1, p. 25-27Article in journal (Other academic)
    Abstract [sv]

    En god kondition och styrka har samband med förbättrad hälsa, minskad förekomst av flera folksjukdomar samt ökad livslängd. Fysiologiska tester kan vara stimulerande för äldre att följa utvecklingen av sin fysiska kapacitet och för olika aktörer som vill göra hälsoutvärderingar.

  • 31.
    Andersson, Eva A
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Utvärdering av träningsövningar för buk- och höftmuskulaturen.1993In: Arbetsmiljöfondens Sammanfattningar, no 1563, p. 1-8Article, review/survey (Other academic)
  • 32.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Hovland, Anders
    Universitetet i Bergen, Solli Distriktspsykiatriske Senter, Nesttun, Norge.
    Kjellman, Bengt
    Psykiatrikliniken, Uppsala Akademiska sjukhuset.
    Taube, Jill
    Själ och Kropp, Stockholm.
    Martinsen, Egil
    Universitetet i Oslo, Kliniken för psykisk hälsa och beroende, Oslo universitetssjukhus.
    Fysisk aktivitet lika bra som KBT eller läkemedel vid depression2015In: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, no 47, p. 2102-2104Article in journal (Refereed)
    Abstract [sv]

    Fyisk aktivitet har dokumenterad effekt vid depression. Effekten är lika god som effekten av antidepressiva läkemedel eller kognitiv beteendeterapi (KBT) vid lindrig till måttlig depression. Dessutom är fysisk aktivitet i stort sett biverkningsfritt.

  • 33.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Hovland, Anders
    Kjellman, Bengt
    Taube, Jill
    Martinsen, Egil W.
    Fysisk aktivitet är lika bra som läkemedel eller samtalsterapi vid depression2016In: Idrottsmedicin, ISSN 2001-3302, Vol. 35, no 1, p. 4-7Article in journal (Other academic)
  • 34.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Kallings, Lena
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Hultgren, Staffan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Kraepelien Strid, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Hälsopedagogprogrammet2014In: Från Kungl. Gymnastiska Centralinstitutet till Gymnastik- och idrottshögskolan: en betraktelse av de senaste 25 åren som del av en 200-årig historia / [ed] Suzanne Lundvall, Stockholm: Gymnastik- och idrottshögskolan, GIH , 2014, p. 108-116Chapter in book (Other (popular science, discussion, etc.))
  • 35.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Can a six-minute shuttle walk test predict maximal oxygen uptake?2011In: Gazzetta Medica Italiana, ISSN 0393-3660, E-ISSN 1827-1812, Vol. 170, no 3, p. 163-70Article in journal (Refereed)
    Abstract [en]

    Aim. This study evaluates the results of and correlations between the six-minute walk-test (6MWT) and a maximal oxygen uptake (VO2max) test among physically active young adults.

    Methods. Sixty-three adults (33 females and 30 males) aged 18-38 years participated. 6MWT and a maximal running treadmill test for measurements of VO2max were performed. 6MWT reliability was also evaluated.

    Results. Mean distance in the 6MWT for the females was 848 (685-976) m and for the males 866 (704-1077) m. The gender differences were considerably less for the 6MWT (2%) than in the VO2max test, both normalized to body weight (21%) and in absolute form (35%). The mean values, for the female and male subjects in the VO2max were 46.7 and 58.9 ml/kg/min and 2.94 and 4.53 l/min, respectively. The data showed a very low, not significant, correlation (r=-0.02-0.32) between walking distance in the 6MWT and VO2max.

    Conclusions: The 6MWT-distance for this physically active young adult group, which previously not has been studied, was considerably higher than in earlier reports for various other groups. In contrast to several prior studies, especially involving people with various diseases, the present data, on healthy active adults, showed that distance in the 6MWT cannot predict maximal oxygen uptake. The present results may be related to the low potential of walking as a locomotor form to tax the cardio-respiratory system sufficiently for this group. Since aerobic capacity is correlated with increased survival, these new data and given comparisons with previous reports are specially valuable when evaluating fitness in various sports and health contexts. 

     

  • 36.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    och medarbetare, se rapport,
    Hälsoprojekt med fysisk aktivitet på Gymnastik- och idrottshögskolan, GIH - Läsåret 2005/20062007Report (Other academic)
    Abstract [sv]

    SYFTE SAMT KORT BESKRIVNING AV HÄLSOPROJEKTET. Syftet med undersökningen var att i samarbete med hälso- och sjukvården och andra intressenter genomföra ett kostnadsfritt hälsoprojekt med fr.a. ledarledd fysisk aktivitet speciellt för personer med olika folksjukdomar men även friska i varierande åldrar. Sammanlagt 228 personer deltog för första gången i hela hälsoprojektet under en termin, dels hösten 2005 (114 deltagare) och dels våren 2006 (114 andra nya deltagare) med för- och eftertester. Initialt och i slutet av respektive termin utfördes varierande fysiologiska tester rörande kondition, styrka, rörlighet och balans samt GIH:s hälsoenkät om upplevd hälsa och olika levnadsvanor såsom fysisk aktivitet, kost, alkohol, rökning, sömn och tid för rekreation.

    METODER. Deltagarna anmälde sig själva eller via hälso- och/eller sjukvårdspersonal på Stockholms vårdcentraler, psykiatriska mottagningar eller friskvårdsföretag. Utöver de sammanlagt 228 som medverkade i hela projektet var det fler som deltog i endast det initiala testerna och var närvarande till viss del under respektive termin. Således föll vissa deltagare bort under projektperioderna av olika anledningar. I denna rapport sammanställs data endast för dem som fullföljde projektet med deltagande vid såväl för- som eftertester (n=228, varav 46 män och 182 kvinnor). Bland dessa 228 deltagare (medelålder 57 år, 22-88 år) sågs vid det initiala testet att det endast var 5% som var fysiskt aktiva 30 minuter/dag samt att minst 2/3 var överviktiga och 1/3 obesa. Projekten utgjordes primärt av, 2 ggr/vecka, ledarledd fysisk aktivitet såsom stavgång, motionsgymnastik, vattengymnastik, styrketräning i gym samt i motionshall med den egna kroppen som belastning. Många andra typer av fysisk aktivitet/verksamheter utfördes även såsom afrikansk dans, yoga, massage, qigong, klättring, spinning, boxer size etc. I samband med den initiala hälsoenkätundersökningen och utförandet av de fysiologiska testerna genomfördes ett hälsosamtal. Hälsoprojekten utfördes inom undervisningen i regi av GIH-studenter under handledning av lärare/läkare på GIH samt externt.

    RESULTAT. GIH:s HÄLSOENKÄT. Signifikant förbättring sågs för gruppen som helhet (n: 228) vid sluttestet jämfört med initialt under projektperioden för följande enkätparametrar: kroppslig hälsa; själslig hälsa; samtliga upplevelsefrågor kring såväl arbetsliv som fritid; sömn; tid för reflektion; tid för avkoppling; samt socialt nätverk. Särskilt hög signifikans sågs för majoriteten av frågorna kring fysiska aktivitetsvanor. Den enda frågan om fysisk aktivitetsvanor som inte förändrades signifikant för gruppen som helhet var frågan kring kroppslig ansträngningsgrad i det dagliga arbetet. Däremot sågs det dagliga stillasittandet minska signifikant. Spridda signifikanta förbättringar gällande kost noterades. Dessa var val av fettsnåla produkter; grönsaksintag; konsumtion av chips och jordnötter; samt kaffebröd. Ingen signifikant förändring sågs för frågor kring övriga kulturella vanor, regelbundenhet i måltider eller för frukt- och fiberintag. Konsumtion av choklad/godis, glass, läsk/saft samt kaffe, te, alkohol och tobak förändrades inte heller signifikant.

    FYSIOLOGISKA TESTER. Val av olika fysiologiska tester var upp till GIH-studenterna som projektledare att själva välja ut. Därmed är här antalet testade lägre jämfört med dem som fyllde i hälsoenkäten, vilken generellt alla deltagare genomförde. Signifikant förbättring mellan efter- och förtest sågs för konditions och gångtesterna Åstrands cykelergometertest (l/min, 9%, n:74), gångtest (9%, n:89) samt steptest (14%, n:7), men inte för Åstrands test uttryckt i ml/kg x min (7%, n:65). Vid statisk ryggmuskeltest med bålen i horisontalläge utanför en bänk med fixerade ben sågs en signifikant förbättring med 62% för de 53 deltagare som utförde detta test. Av de olika buk- inklusive höftböjarmuskeltesterna, utförda som höftböjningssit-up med böjda ben och stöd, sågs en signifikant förbättring för alla dynamiska och statiska testerna sammantagna (68%, n:64) samt vid bentestet stående med höft- och knäleder i 90 graders vinkel stödjandes bålen mot en vägg (40%, n: 40). Bland styrketester för skuldra-, arm- och handmuskulatur sågs en signifikant förbättring i axelpress, dvs växelvisa sträckningar med en 2- eller 4kg´s hantel från axelhöjd till raka armar upp mot taket maximalt antal gånger, (55%, n:9); vid push-ups, då antalet armhävningar antingen utförda med knäna eller fötterna i golvet räknades, (136%, n:17); samt i gripstyrka höger hand (17%, n:113). En liten förbättring, dock signifikant (knappt 1%), sågs både för uppmätt vikt (n: 169) samt för BMI (n:154) beräknat på denna vikt mellan det initiala och slutliga hälsotestet. Detsamma gällde midje- (2%) och höftmått (1%) samt midje-/höftkvot (knappt 1%) med en signifikant förbättring för män och kvinnor sammantagna (n: minst 34). Ingen signifikant skillnad i uppmätt vilopuls noterades. En signifikant förbättring sågs för rörlighetstesterna stående bålflexion (24%, n:20) och majoriteten av sidböjningstester av bålen (6-12%, n: upp till 37). För det speciellt utformade skulderrörlighetstestet framkom inga klara generella förändringar. Balanstestet stående på ett ben där man registrerade antal nedtramp på en minut visade ingen signifikant förändring mellan för- och eftertest vare sig på höger (n:24) eller vänster ben (n=23).

    SLUTKOMMENTAR. För ledare, hälso- och sjukvårdspersonal samt utövare inom varierande hälso-, idrotts-, arbets- eller rehabiliteringssammanhang kan det vara av vikt att få kunskaper om vilka typer av fysiologiska tester och hälsoenkätfrågor som kan påverkas av hälsoprojekt med ledarledd fysisk aktivitet och andra hälsofrämjande åtgärder. Av speciell vikt är att se om projekt som dessa kan resultera i ökade fysisk aktivitetsvanor och ökad fysisk kapacitet som båda är faktorer positivt korrelerade till en mängd folksjukdomar. I så fall stärks det faktum att liknande hälsofrämjande åtgärder med ledarledd fysisk aktivitet kan bidra till sjukdomsprevention och sjukdomsbehandling.

  • 37.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Oddsson, Kristjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Skador & sjukdomar: Akut omhändertagande inom idrotten2015Book (Other (popular science, discussion, etc.))
    Abstract [sv]

    Olika skador i rörelseapparaten och hur man agerar vid akuta sjukdoms- eller olycksfall ingår. Den första delen innehåller bland annat en genomgång av skadetyper kroppsdel för kroppsdel, samt ett avsnitt om tejpning. I den andra delen har det gjorts ett urval av olika akuta sjukdoms- och skadetillstånd som kan förekomma i samband med fysisk aktivitet. På ett enkelt och sakligt sätt beskrivs skador och sjukdomar som av olika anledningar drabbar fysiskt aktiva personer och vilken/vilka åtgärder som ska sättas in när olyckan är framme. Du får veta vad du kan göra själv och vad som måste behandlas av läkare.

  • 38.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Oddsson, Kristjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Skador, sjukdomslära samt akut omhändertagande2018In: Idrottens träning, Stockholm: SISU idrottsböcker , 2018, p. 153-181Chapter in book (Other (popular science, discussion, etc.))
    Abstract [sv]

    Ambitionen med detta kapitel är att på ett enkelt, sakligt och inspirerande sätt beskriva akuta sjukdoms- och skadetillstånd (inkl. missbruk) som kan förekomma i samband med fysisk aktivitet, och vilken eller vilka åtgärder som ska sättas in när olyckan är framme. [...]

  • 39.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Oddsson, Kristjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Laboratory of Applied Sports Science (LTIV).
    Ekblom, Örjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.
    Wahlgren, Lina
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, The Research Unit for Movement, Health and Environment.
    Kjellman, Bengt
    Jonsson, Bo
    Taube, Jill
    Improved Physical Capacity in a Project with Guided Physical Activity for Persons with Depression or Anxiety.2010Conference paper (Refereed)
    Abstract [en]

    Background: Higher physical capacity is correlated with increased health. Knowledge in this area regarding psychiatric diseases is sparse. 

    Purpose: The aim was to study aerobic and several strength capacities in a physical activity project for persons with depression or anxiety.

    Methods: Eighty-four persons (56 women and 28 men) with depression or anxiety were recruited from psychiatric out-patient clinics in Stockholm. Their mean age and BMI was 46 (21-80) years and 26 (17-41) kg/m2, respectively. 50% were sick-listed. 50% had BMI>25. Aerobic and strength tests were chosen by each subgroup´s project leaders. Directed physical activity was given, in groups 10-15, 1 hour twice/week during 8-12 weeks.

    Results: Significant changes (p<0.05, of all n=84) between pre- and post tests were seen in submaximal cycle test (11% enhanced values, n=56) and distance of 6 minutes walk test (16%, n=15) as well as in strength tests for the back for the back (i.e. time in static horizontal belly-back, 40%, n=44), abdominal and hip flexors (i.e. number of hip flexion sit-ups, 45%, n=38), leg (i.e. standing with 90O in hips and knees, 48%, n=56) and arm with shoulder muscles (i.e. number of raising weights alternately with the arms, 46%, n=32). Hand grip tests, BMI or blood pressure values did not change significantly.

    Conclusions: Directed 8-12 weeks physical activity programs can improve physical fitness in individuals with depression or anxiety.

  • 40.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Oddsson, Kristjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    von Rosen, Philip
    Karolinska institutet.
    Idrottsskador: Skadeförebyggande metoder, rehabilitering och akut omhändertagande2018In: Specialidrott: Tränings- och tävlingslära, Stockholm: SISU idrottsböcker , 2018, p. 143-177Chapter in book (Other (popular science, discussion, etc.))
  • 41.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Oddsson, L
    Grundström, H
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    EMG activities of the quadratus lumborum and erector spinae muscles during flexion-relaxation and other motor tasks.1996In: Clinical biomechanics (Bristol, Avon), Vol. 11, no 7, p. 392-400Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: The aim of this study was to provide new information on the myoelectrical activation of the quadratus lumborum, the deep lateral and the superficial medial lumbar erector spinae, the psoas, and the iliacus muscles in various motor tasks. DESIGN: An intramuscular electromyographic study was performed. BACKGROUND: The contribution of individual deep trunk muscles to the stability of the lumbar spine is relatively unknown in different tasks, including the flexion-relaxation phenomenon. METHODS: Seven healthy subjects participated. Fine-wire electrodes were inserted with a needle guided by ultrasound. RESULTS: The highest activity observed for quadratus lumborum and deep lateral erector spinae occurred in ipsilateral trunk flexion in a side-lying position and for superficial medial erector spinae during bilateral leg lift in a prone position. Quadratus lumborum and deep lateral erector spinae were activated when the flexion-relaxation phenomenon was present for superficial medial erector spinae, i.e. when its activity ceased in the latter part of full forward flexion of the trunk, held relaxed and kyphotic. CONCLUSIONS: In general, the activation of the investigated muscles showed a high degree of task specificity, where activation of a certain muscle was not always predictable from its anatomical arrangement and mechanical advantage.

  • 42.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Oddsson, L
    Grundström, H
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    The role of the psoas and iliacus muscles for stability and movement of the lumbar spine, pelvis and hip.1995In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 5, no 1, p. 10-6Article in journal (Refereed)
    Abstract [en]

    The activation patterns of the psoas and iliacus muscles were investigated in 7 healthy adult subjects (4 men and 3 women) during a variety of motor tasks in standing, sitting and lying. Myoelectric activity was recorded simultaneously from the 2 muscles using thin wire electrodes inserted under guidance of high-resolution ultrasound. In general, both muscles were coactivated, albeit to different relative levels, particularly when hip flexor torque was required. Selective activation of the iliacus could, however, be seen to stabilize the pelvis in contralateral hip extension during standing. Psoas was found to be selectively involved in sitting with a straight back and in contralateral loading situations requiring stabilization of the spine in the frontal plane. During training exercises from a supine position, such as sit-ups, the contribution of the psoas and iliacus muscles could be varied by changing the range of motion as well as the position and support for the legs. Thus, the 2 anatomically different muscles of the iliopsoas complex were shown to have individual and task-specific activation patterns depending on the particular demands for stability and movement at the lumbar spine, pelvis and hip.

  • 43.
    Andersson, Eva
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Swärd, L
    Thorstensson, Alf
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Trunk muscle strength in athletes.1988In: Medicine & Science in Sports & Exercise, ISSN 0195-9131, E-ISSN 1530-0315, Vol. 20, no 6, p. 587-93Article in journal (Refereed)
    Abstract [en]

    Maximal voluntary strength of the trunk muscles was measured in 57 male elite athletes (soccer players, wrestlers, tennis players, and gymnasts), 14 female elite gymnasts, and in a normal group of 87 conscripts. Mean ages in the different groups ranged from 18-22 yr. An isokinetic (constant velocity) technique was used to record maximal torque produced by trunk and hip muscles during flexion, extension, and lateral flexion over the range of motion. The constant angular velocities used were 15 deg.s-1 and 30 deg.s-1, respectively. Isometric strength was measured in a straight body position (0 deg. of flexion). The measurements were made with the subjects in a horizontal position with the pivot point at the hip and at the lumbar (L2-L3) level. All male athlete groups showed higher peak torque values than the normals. The differences were largest in hip extension and trunk flexion. The male gymnasts also showed significantly higher peak values in hip flexion as compared to all other categories. There was no difference in strength per kg body weight between female gymnasts and untrained males, except in trunk extension. The position for peak torque occurred earlier in the movements for the athletes, especially for the gymnasts in extension movements and for the tennis players in flexion movements. In isometric contractions essentially the same strength differences were present as in the slow isokinetic contractions. In lateral flexion wrestlers and tennis players showed significantly higher strength in movements toward the nondominant side. Thus, differences were present between the athletes and the normals, some of which appeared to be sport specific and related to long-term systematic training.(ABSTRACT TRUNCATED AT 250 WORDS)

  • 44. Andersson, Frida
    et al.
    Vångell, Fredrika
    Yttergren, Leif
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Sport History Research Group.
    Orienteringsträning i förändring: En komparativ studie av orienteringsträning på elitnivå på 1980-talet och 20102011In: Idrottsforum.org/Nordic sport science forum, ISSN 1652-7224, no 11 majArticle in journal (Other academic)
    Abstract [sv]

    Det har tagit åtta år och 137 uppdateringar innan orienteringssporten förekommer på idrottsforum.org mer än bara nämnd i förbifarten i en bisats i en text som handlar om något helt annat. Överhuvud taget har orienteringssporten inte i någon märkvärdig utsträckning väckt idrottsforskarnas intresse – med ett lysande undantag, nämligen pedagogikprofessorn vid Högskolan Kristianstad och Högskolan i Borås, Torgny Ottosson, som redan 1984 publicerade forskningsrapporten "Problemlösningsstrategier i orientering: En skiss till teoretisk ram och en metodstudie" vid Göteborgs universitet. Tre år senare kom avhandlingen Map-reading and wayfinding (Göteborg Studies in Educational Sciences, 65), och därefter har Ottosson publicerat ett flertal artiklar om orientering, bland annat i Scientific Journal of Orienteering. Om skälen till att Torgny Ottosson ensam fått föra orienteringsforskningen framåt i orienteringssportens hemland kan vi blott spekulera; möjligen kan det har att göra med att sporten till sin natur saknar viktiga förutsättningar för att bli en bred publiksport, och därmed uppvisar en markerad frånvaro av kommersiell potential. Här är dock inte sista ordet sagt; samma sak sas ju om skidskyttet innan televisionen utvecklade täckningen av tävlingar på ett sätt som gjort skidskytte till en av de främsta publiksporterna. Orienteringssporten sägs ha sitt ursprung i Sverige i slutet av 1800-talet – termen orientering användes första gången 1886, enligt engelska Wikipedia, medan SAOL refererar till Idrottsbladet från 1924. Oxford English Dictionary anger att orienteering infördes i engelskan på 1940-talet, från svenskans orientering. Ordet härstammar uppenbarligen från oriens, latin för Östern, Orienten, och definieras i orienteringssammanhang som "hitta väderstreck", med betydelsen "förflyttning från en punkt i terrängen till en annan (med hjälp av karta o. kompass)". Det började som militära övningar och därefter militära tävlingar. Den första tävlingen som var öppen för civila gick av stapeln i norska Nordmarka 1897. Sveriges första tävling för civila kom fyra år senare, i arrangemang av Sundbybergs IK. Damer släpptes in i sporten 1925 redan, och man hann med ett SM 1935, tre år innan Svenska Orienteringsförbundet bildades. 1960-talet inleddes med att Internationella Orienteringsförbundet bildades, och sporten nådde nu på allvar utanför den nordiska skogsmiljön. Frida Andersson, Fredrika Vångell och Leif Yttergren visar i sin artikel i den här uppdateringen hur orienteringssporten från och med 1980-talet genomgått en omfattande förändringsprocess, som kan sammanfattas med begreppen "miniglobalisering", det vill säga att sporten fått allt större internationell spridning; sportifiering, med innebörden att man brutit med traditionen att bara springa en enda distans; samt avskogifiering – man springer allt oftare i annan terräng än skogslandskap. Till det kan läggas att kartografitekniken har utvecklats med hjälp av datorer och GPS. Andersson, Vångell och Yttergren vill i sin studie undersöka i vilken utsträckning orienteringssportens förändringar under de senaste 30 åren lett till motsvarande förändringar i orienterarnas träningsstrategier. De kombinerar litteraturstudier och enkätintervjuer med aktiva förr och nu, och kommer fram till bitvis ganska förvånansvärda resultat, som kanske främst sätter sportifieringsbegreppets användning i samband med orientering ifråga. Traditionens makt är stor, här som i andra sammanhang.

  • 45.
    Andersson, Helena
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.
    Ekblom, Björn
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.
    Krustrup, Peter
    Elite football on artificial turf versus natural grass: movement patterns, technical standards, and player impressions.2008In: Journal of Sports Sciences, ISSN 0264-0414, E-ISSN 1466-447X, Vol. 26, no 2, p. 113-22Article in journal (Refereed)
    Abstract [en]

    The aim of the present study was to examine the movement patterns, ball skills, and the impressions of Swedish elite football players during competitive games on artificial turf and natural grass. Time - motion analyses (36 observations) and technical analyses (16 team observations) were performed and 72 male and 21 female players completed a questionnaire. No differences were observed between artificial turf and natural grass in terms of total distance covered (mean 10.19 km, s = 0.19 vs. 10.33 km, s = 0.23), high-intensity running (1.86 km, s = 0.10 vs. 1.87 km, s = 0.14), number of sprints (21, s = 1 vs. 22, s = 2), standing tackles (10, s = 1 vs. 11, s = 1) or headers per game (8, s = 1 vs. 8, s = 1), whereas there were fewer sliding tackles (P < 0.05) on artificial turf than natural grass (2.1, s = 0.5 vs. 4.3, s = 0.6). There were more short passes (218, s = 14 vs. 167, s = 12) and midfield-to-midfield passes (148, s = 11 vs. 107, s = 8) (both P < 0.05) on artificial turf than natural grass. On a scale of 0-10, where 0 = "better than", 5 = "equal to", and 10 = "worse than", the male players reported a negative overall impression (8.3, s = 0.2), poorer ball control (7.3, s = 0.3), and greater physical effort (7.2, s = 0.2) on artificial turf than natural grass. In conclusion, the running activities and technical standard were similar during games on artificial turf and natural grass. However, fewer sliding tackles and more short passes were performed during games on artificial turf. The observed change in playing style could partly explain the male players' negative impression of artificial turf.

  • 46. Andersson, Helena
    et al.
    Raastad, Truls
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Paulsen, Gøran
    Garthe, Ina
    Kadi, Fawzi
    Neuromuscular fatigue and recovery in elite female soccer: effects of active recovery.2008In: Medicine & Science in Sports & Exercise, ISSN 0195-9131, E-ISSN 1530-0315, Vol. 40, no 2, p. 372-80Article in journal (Refereed)
    Abstract [en]

    PURPOSE: To investigate the time course of recovery from neuromuscular fatigue and some biochemical changes between two female soccer matches separated by an active or passive recovery regime. METHODS: Countermovement jump (CMJ), sprint performance, maximal isokinetic knee flexion and extension, creatine kinase (CK), urea, uric acid, and perceived muscle soreness were measured in 17 elite female soccer players before, immediately after, 5, 21, 45, 51, and 69 h after a first match, and immediately after a second match. Eight players performed active recovery (submaximal cycling at 60% of HRpeak and low-intensity resistance training at < 50% 1RM) 22 and 46 h after the first match. RESULTS: In response to the first match, a significant decrease in sprint performance (-3.0 +/- 0.5%), CMJ (-4.4 +/- 0.8%), peak torque in knee extension (-7.1 +/- 1.9%) and flexion (-9.4 +/- 1.8%), and an increase in CK (+ 152 +/- 28%), urea (15 +/- 2), uric acid (+ 11 +/- 2%), and muscle soreness occurred. Sprint ability was first to return to baseline (5 h) followed by urea and uric acid (21 h), isokinetic knee extension (27 h) and flexion (51 h), CK, and muscle soreness (69 h), whereas CMJ was still reduced at the beginning of the second match. There were no significant differences in the recovery pattern between the active and passive recovery groups. The magnitude of the neuromuscular and biochemical changes after the second match was similar to that observed after the first match. CONCLUSION: The present study reveals differences in the recovery pattern of the various neuromuscular and biochemical parameters in response to a female soccer match. The active recovery had no effects on the recovery pattern of the four neuromuscular and three biochemical parameters.

  • 47. Andersson, Håkan
    et al.
    Johansson, Tim
    Fröjd, Kennet
    Nilsson, Johnny
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Träningslära för rullstolsåkning2007Book (Other (popular science, discussion, etc.))
    Abstract [sv]

    Spridd över hela världen finns det mycket kunskap om rullstolsträning, men det har inte tidigare funnits samlat någonstans. Samtidigt finns behov av ytterligare forskning inom området. Flera års litteraturstudier, erfarenhets – och datainsamling samt forskningsstudier har resulterat i denna bok. En stor del av utrymmet i boken ägnas åt styrketräning då detta är viktigt ur ett idrotts- rehabiliterings- och folkhälsoperspektiv. Detta gäller för såväl rullstolsidrottare som andra rullstolsbrukare. Författarkvartetten som skrivit boken är sammantaget etablerade inom såväl den paralympiska som den olympiska idrotten och också i forskarvärlden.

  • 48. Andersson, Ulrika
    et al.
    Leighton, Brendan
    Young, Martin E
    Blomstrand, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Eva Blomstrand's research group.
    Newsholme, Eric A
    Inactivation of aconitase and oxoglutarate dehydrogenase in skeletal muscle in vitro by superoxide anions and/or nitric oxide.1998In: Biochemical and Biophysical Research Communications - BBRC, ISSN 0006-291X, E-ISSN 1090-2104, Vol. 249, no 2, p. 512-6Article in journal (Refereed)
    Abstract [en]

    Strips of rat soleus muscle were incubated in media containing a superoxide generating system and/or the nitric oxide donor sodium nitroprusside (SNP) before the maximal catalytic activities of aconitase, citrate synthase, and oxoglutarate dehydrogenase were measured. The maximal activities of aconitase and oxoglutarate dehydrogenase were both decreased by 25-30% by superoxide anions; however, only the maximal activity of aconitase was decreased, by approximately 50%, by incubation of muscles with SNP. Furthermore, when both superoxide and NO were present in the medium, aconitase activity was decreased by 70%. The maximal activity of citrate synthase was not affected by any of the treatments. This is the first time that superoxide anions or NO has been shown to inactivate aconitase and oxoglutarate dehydrogenase in skeletal muscle. It is suggested that these effects may be responsible for some alterations in skeletal muscle metabolism, and these possibilities are discussed.

  • 49. Andréll, Paulin
    et al.
    Schultz, Tomas
    Mannerkorpi, Kaisa
    Nordeman, Lena
    Börjesson, Mats
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Mannheimer, Clas
    Health-related quality of life in fibromyalgia and refractory angina pectoris: a comparison between two chronic non-malignant pain disorders.2014In: Journal of Rehabilitation Medicine, ISSN 1650-1977, E-ISSN 1651-2081, Vol. 46, no 4, p. 341-7Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: To compare health-related quality of life in 2 different populations with chronic pain: patients with fibromyalgia and patients with refractory angina pectoris. Previous separate studies have indicated that these patient groups report different impacts of pain on health-related quality of life.

    METHODS: The Short-Form 36 was used to assess health- related quality of life. In order to adjust for age and gender differences between the groups, both patient groups were compared with age- and gender-matched normative controls. The difference in health-related quality of life between the 2 patient groups was assessed by transforming the Short-Form 36 subscale scores to a z-score.

    RESULTS: The patients with fibromyalgia (n = 203) reported poorer health-related quality of life in all the subscale scores of Short-Form 36 (p < 0.05-0.0001) than the patients with refractory angina (n = 146) when both groups were compared with their corresponding normal population (z-score).

    CONCLUSION: Patients with fibromyalgia experience greater impairment in health-related quality of life compared with the normal population than do patients with refractory angina pectoris, despite the fact that the latter have a potentially life-threatening disease. The great impairment in health- related quality of life in patients with fibromyalgia should be taken into consideration when planning rehabilitation.

  • 50. Angenete, E
    et al.
    Angerås, U
    Börjesson, Mats
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Ekelund, J
    Gellerstedt, M
    Thorsteinsdottir, T
    Steineck, G
    Haglind, E
    Physical activity before radical prostatectomy reduces sick leave after surgery - results from a prospective, non-randomized controlled clinical trial (LAPPRO).2016In: BMC Urology, ISSN 1471-2490, E-ISSN 1471-2490, Vol. 16, no 1, article id 50Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: Studies have reported that early physical rehabilitation after surgical procedures is associated with improved outcome measured as shorter hospital stay and enhanced recovery. The aim of this study was to explore the relationship between the preoperative physical activity level and subsequent postoperative complications, sick-leave and hospital stay after radical prostatectomy for prostate cancer in the setting of the LAPPRO trial (LAParoscopic Prostatectomy Robot Open).

    METHODS: LAPPRO is a prospective controlled trial, comparing robot-assisted laparoscopic and open surgery for localized prostate cancer between 2008 and 2011. 1569 patients aged 64 or less with an occupation were included in this sub-study. The Gleason score was <7 in 52 % of the patients. Demographics and the level of self-assessed preoperative physical activity, length of hospital stay, complications, quality of life, recovery and sick-leave were extracted from clinical record forms and questionnaires. Multivariable logistic regression, with log-link and logit-link functions, was used to adjust for potential confounding variables.

    RESULTS: The patients were divided into four groups based on their level of activity. As the group with lowest engagement of physical activity was found to be significantly different in base line characteristics from the other groups they were excluded from further analysis. Among patients that were physically active preoperativelly (n = 1467) there was no significant difference between the physical activity-groups regarding hospital stay, recovery or complications. However, in the group with the highest self-assessed level of physical activity, 5-7 times per week, 13 % required no sick leave, compared to 6.3 % in the group with a physical activity level of 1-2 times per week only (p < 0.0001).

    CONCLUSIONS: In our study of med operated with radical prostatectomy, a high level of physical activity preoperatively was associated with reduced need for sick leave after radical prostatectomy compared to men with lower physical activity.

    TRIAL REGISTRATION: The trial is registered at the ISCRTN register. ISRCTN06393679 .

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