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  • Henning, Georg
    et al.
    German Centre of Gerontology, Berlin, Germany..
    Stenling, Andreas
    University of Umeå, Umeå, Sweden..
    Bielak, Allison A M
    Colorado State University, Fort Collins, USA.
    Bjälkebring, Pär
    University of Gothenburg, Gothenburg, Sweden.
    Gow, Alan J
    Heriot-Watt University, Edinburgh, UK.
    Kivi, Marie
    University of Gothenburg, Gothenburg, Sweden.
    Muniz-Terrera, Graciela
    University of Edinburgh, Edinburgh, UK.
    Johansson, Boo
    University of Gothenburg, Gothenburg, Sweden.
    Lindwall, Magnus
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences. University of Gothenburg, Gothenburg, Sweden.
    Towards an active and happy retirement? Changes in leisure activity and depressive symptoms during the retirement transition.2020In: Aging & Mental Health, ISSN 1360-7863, E-ISSN 1364-6915, p. 1-11Article in journal (Refereed)
    Abstract [en]

    Objectives: Retirement is a major life transition in the second half of life, and it can be associated with changes in leisure activity engagement. Although theories of retirement adjustment have emphasized the need to find meaningful activities in retirement, little is known about the nature of changes in leisure activity during the retirement transition and their association with mental health.

    Methods: Based on four annual waves of the 'Health, Aging and Retirement Transitions in Sweden' study, we investigated the longitudinal association of leisure activity engagement and depressive symptoms using bivariate dual change score models. We distinguished intellectual, social, and physical activity engagement.

    Results: We found increases in all three domains of activity engagement after retirement. Although level and change of activity and depressive symptoms were negatively associated, the coupling parameters were not significant, thus the direction of effects remains unclear.

    Conclusion: The results highlight the need to consider the role of lifestyle changes for retirement adjustment and mental health.

  • Nyberg, Gunn
    et al.
    Dalarna University, Falun, Sweden..
    Barker, Dean
    Örebro University, Örebro, Sweden..
    Larsson, Håkan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogisk idrottsforskning.
    Exploring the educational landscape of juggling - challenging notions of ability in physical education2020In: Physical Education and Sport Pedagogy, ISSN 1740-8989, E-ISSN 1742-5786Article in journal (Refereed)
    Abstract [en]

    Background: Research on physical education (PE) shows a prevalence of narrow and reductionist views on what counts as ability. These views tend to privilege certain students and marginalize others, and often equate ability with technique-based sport performance. A lot of research is still directed towards the above problem. However, very few have devoted time and energy to actually resolving this problem. If no alternatives to narrow and reductionist views of ability are presented, then research will struggle to make a difference to the practice of PE. Assuming that movement is a key element in PE, the question of what counts as ability in PE is, we argue, a question of what capabilities a learner needs to develop in order to move in different ways. Investigating what movement capability can mean will provide possibilities for discussing and negotiating the meaning of ability in PE when the learning goal is something other than technique-based sport performance. Purpose: The aim of this paper is to further advance the knowledge base of what movement capability can mean within the context of PE. By achieving this aim, we intend to challenge narrow views on ability and thereby provide enhanced possibilities for PE to make a difference for students' abilities through education. Theory and method: The process of coming to know something can be seen as exploring, with all senses, a landscape. Exploration involves recognizing details and nuances of the landscape and their relationships to one another. In this investigation, we examine what there is to know in the landscape of juggling using Ryle's and Polanyi's notions of knowing and learning. In line with a focus on the learners' perspectives, interviews and observations were conducted with students whilst they were coming to know juggling. Ethnographic-type conversations were used to help students describe what they seemed to know or were aiming to know. Students were invited to write diaries with a focus on their experiences during the learning process, which we hoped could extend our insights regarding the experiential aspects in learning. Findings: Findings of the investigation suggest that in the group of students, four significant ways of knowing the landscape of juggling are important: grasping a pattern; grasping a rhythm; preparing for the next throw and catch and navigating one's position and throwing. The research challenges the narrow view on ability as technique-based sport performance by providing examples of what movement capability can mean in terms of knowing a movement landscape alternatively to knowing a specific movement 'in the right way.'

  • Blom, Victoria
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Sport Psychology research group. Karolinska institutet.
    Kallings, Lena
    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.
    Wallin, Peter
    HPI Health Profile Institute AB, Stockholm, Sweden.
    Andersson, Gunnar
    HPI Health Profile Institute AB, Stockholm, Sweden.
    Hemmingsson, Erik
    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, Åstrand Laboratory of Work Physiology.
    Söderling, Jonas
    Karolinska institutet.
    Ekblom Bak, Elin
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Self-Reported General Health, Overall and Work-Related Stress, Loneliness, and Sleeping Problems in 335,625 Swedish Adults from 2000 to 2016.2020In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 17, no 2, article id E511Article in journal (Refereed)
    Abstract [en]

    The prevalence of poor health, in particular stress-related mental ill-health, is increasing over time and birth cohorts. As rapid societal changes have occurred in the last decade and still are occurring, there is an interest in investigating the trends in health-related factors. The aim of the present study was to investigate trends in self-reported general health, overall stress, work-related stress, feelings of loneliness, and sleeping problems in 335,625 Swedish adults across categories of gender, geographic regions, length of education, and age from 2000 to 2016. On population level, sleeping problems and poor general health have increased markedly and significantly, while experiences of work stress decreased between 2000 and 2016 (p < 0.05). Overall stress and level of loneliness were unchanged (p > 0.05). The risk of having ≥3 symptoms (any of poor or very poor general health, often or very often perceived overall stress, loneliness, or sleeping problems) has increased significantly from 2000 to 2016 (ß = 1034 (1027-1040)). This increase was significantly higher in young (ß = 1052 (1038-1065)) and individuals with lower education (ß = 1056 (1037-1076)) compared to older and high length of education.

  • Moberg, Mathias
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Trötthet inom alpin skidåkning på elitnivå: "Monitorering över en intensifierad träningsperiod"2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte & frågeställningar

    Syftet med denna studie är att identifiera och observera trötthet inom alpin skidåkning samt hur den utvecklas under en träningsperiod. Vidare kommer det undersökas om det primärt är perifer, central eller mental trötthet som utvecklas och om de samverkar med varandra.

    Frågeställning 1: Påverkas alpina elitskidåkare av trötthet och hinner de återhämta sig mellan träningspassen under en period på fem dagar?

    Frågeställning 2: Finns det något samband mellan åkarnas mentala och muskulära trötthet?

     

    Metod

    Detta är en kvantitativ experimentell studie som undersökte hur alpina elitskidåkare påverkades av trötthet under en träningsperiod på fem dagar. I studien deltog sex manliga alpina elitskidåkare som genomförde två skidpass per dag. Före och efter respektive skidpass testades deltagarnas reaktionsförmåga, Squat Jump, Repeated Counter Movement Jump samt upplevda mentala och fysiska status för att identifiera eventuell mental och muskulär trötthet.

     

    Resultat

    Studien resulterade i en signifikant utvecklad mental trötthet (P<0.05) under träningsperioden medan inga muskulära trötthetseffekter kunde identifieras. Åkarna återhämtade sig muskulärt mellan passen medan mental trötthet inte återgick till normala nivåer. Det fanns inget samband mellan åkarnas mentala och muskulär trötthet medan sambandet mellan muskulär och mental trötthet korrelerade starkt (r=0.9).

     

    Slutsats

    Studien resulterade i en primärt utvecklad mental trötthet under perioden medan muskulär trötthet inte påvisades. Därav är det mental trötthet som främst påverkar alpina elitskidåkare medan perifer och central trötthet är något som åkarna verkar återhämtar sig från mellan pass. Eftersom det inte fanns något samband mellan muskulär och mental trötthet beror den utvecklade tröttheten inte på fysiologiska utan på psykologiska faktorer. Den utvecklade mentala tröttheten kan då istället ha berott på den totala träningstiden alpinisterna utsattes för under perioden eller på för höga respektive för låga stressnivåer vilket kan orsaka en ökad mental trötthet hos idrottare.

  • Dronsfield, Daniel
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Andrén Bahnson, Thomas
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Belastningsskador bland unga fotbollsspelare2020Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte och frågeställningar

    Syftet med studien är att undersöka om ungdomar riskerar att ådra sig överbelastningsskador på grund utav sitt idrottande. Studiens frågeställningar är:

    1. Tenderar ungdomar som multi-idrottar att ådra sig överbelastningsskador i större utsträckning än ungdomar som har valt att tidigt specialisera sig på en idrott?

    2. Finns det ett samband mellan mängd idrottstimmar i veckan som ungdomar utövar och deras självrapporterade skadefrekvens?

    Metod

    Studien har en kvantitativ ansats med enkät som metod. Vårt urval är begränsat till pojkar i åldrarna 12–14. Fotbollsklubbar inom Stockholmsområdet har valts ut för deltagande. Målsättningen var att samla in 200 enkätsvar genom att besöka fotbollslag på deras träningar, efter bortfall fick vi in totalt 126 svar. Vetenskapsrådets fyra krav för samhällsvetenskaplig forskning har legat till grund för de etiska övervägandena för utformningen av denna studie.

    Resultat

    Studien ger inga signifikanta svar men resultaten visar att fler multi-idrottare skadar sig i större utsträckning än de som specialiserar sig. De ådrar sig fler belastningsskador och har fler skadedagar. Å andra sidan råkar de som specialiserar sig ut för fler traumatiska skador.

    Slutsats

    Det finns tendenser att multi-idrottare ådrar sig belastningsskador i något högre grad än de som specialiserar sig. Det finns också en tendens att träningsvolym korrelerar med skadefrekvens.

  • Dreber, Helena
    et al.
    Obesity Center, Karolinska University Hospital, Stockholm, Sweden.
    Thorell, Anders
    Department of Clinical Science, Karolinska Institutet, Danderyds Hospital and Department of Surgery, Ersta Hospital, Stockholm, Sweden..
    Reynisdottir, Signy
    Obesity Center, Karolinska University Hospital, Stockholm, Sweden.
    Hemmingsson, Erik
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Health-Related Quality of Life 5 Years After Roux-en-Y Gastric Bypass in Young (18-25 Years) Versus Older (≥ 26 Years) Adults: a Scandinavian Obesity Surgery Registry Study.2019In: Obesity Surgery, ISSN 0960-8923, E-ISSN 1708-0428, Vol. 29, no 2, p. 434-443Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: To compare changes in health-related quality of life (HRQoL) in young (18-25 years) versus older (≥ 26 years) adults up to 5 years after Roux-en-Y gastric bypass (RYGB).

    METHODS: Data on Short Form-36 (SF-36) and obesity-related problems scale (OP) at baseline and 1, 2, and 5 years after RYGB were extracted from the Scandinavian Obesity Surgery Registry. Within-group changes and the effect of age group on 5-year changes in SF-36 and OP were analyzed. Effects sizes (ESs) were calculated.

    RESULTS: A total of 2542 young and 12,425 older adults were included at baseline, and 138 young (20.7% of those eligible) and 1021 older (31.8%) adults were followed-up 5 years post-RYGB. At this time, average to large improvements (ES ≥ 0.5) were observed in physical functioning, physical component score and OP in young adults, and in physical functioning, role physical, general health, physical component score, and OP in older adults (all, p ≤ 0.001). Both age groups displayed negligible to weak (ES < 0.5) or no improvements in mental HRQoL (all, p < 0.55). Older adults displayed greater 5-year improvements than their young counterparts in role physical, general health, vitality, social functioning, physical component score, and obesity-related problems scale (all, p < 0.05).

    CONCLUSIONS: Both young and older adults displayed improvements in OP and physical HRQoL 5 years post-RYGB compared to baseline, while mental HRQoL did not improve to the same extent. Greater HRQoL-improvements could be expected in older patients why future research on HRQoL post-RYGB should stratify data on age groups.

  • Ekblom, Maria
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Karolinska institutet.
    Ekblom, Örjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Börjesson, Mats
    University of Gothenburg.
    Bergström, Göran
    University of Gothenburg.
    Jern, Christina
    University of Gothenburg.
    Wallin, Anders
    University of Gothenburg.
    Device-Measured Sedentary Behavior, Physical Activity and Aerobic Fitness Are Independent Correlates of Cognitive Performance in Healthy Middle-Aged Adults-Results from the SCAPIS Pilot Study.2019In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 16, no 24, article id E5136Article in journal (Refereed)
    Abstract [en]

    High aerobic fitness, more moderate to vigorous physical activity (MVPA) and less sedentary behavior (SED) have all been suggested to promote cognitive functions, but it is unclear whether they are independent predictors of specific cognitive domains. This study aimed to investigate to what extent aerobic fitness MVPA and SED are independently associated with cognitive performance among middle-aged Swedish adults. We acquired device-based measures of aerobic fitness, cognitive performance and percent daily time spent in MVPA and SED in Swedish adults (n = 216; 54-66 years old). Aerobic fitness was associated with better performance at one out of two tests of speed/attention and one out of four tests of executive attention, and with worse performance at one of seven tests of memory. Increasing %MVPA was associated with better performance at one out of seven tests of memory and two out of three tests of verbal ability, whereas increasing %SED was associated with better performance at all four tests of executive attention and four out of seven tests of memory. These findings suggest that aerobic fitness, %MVPA and %SED are partly independent correlates of cognitive performance. To fully understand the association between SED and performance at several tests of cognitive function, future investigations might attempt to investigate intellectually engaging SED (such as reading books) separately from mentally undemanding SED (such as watching TV).

  • Schantz, Peter
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    City behöver ett universitet1994In: Svenska Dagbladet, no 12 dec, p. 4-Article in journal (Other (popular science, discussion, etc.))
  • Schantz, Peter
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, The Research Unit for Movement, Health and Environment.
    Alfred Nobel och hans okände medarbetare: Alfred Nobel and his unknown coworker2019In: Norrbottens-Kuriren, no 18 december, p. 20-21Article in journal (Other (popular science, discussion, etc.))
    Abstract [en]

    Alfred Nobel is the Swedish inventor of dynamite and the testamentator behind the Nobel Foundation and the Nobel Prizes. The article “Alfred Nobel and his unknown co-worker” is  a translation of the originally in Swedish published article in the daily Swedish newspaper Norrbottens-Kuriren, in December 18, 2019. It elaborates on the issue of which potential persons that Alfred Nobel himself would have toasted in thankfulness for his life and achievements.  Based on Nobel´s testament, and unknown or very sparsely known sources, the great importance of his coworker, the engineer Alarik Liedbeck, protrudes in a new light. Further news in this article is the fact that Liedbeck was a grandchild of the gymnasiarch Per Henrik Ling, who founded the Swedish Ling Gymnastics, including Medical Gymnastics, or what today is known as physiotherapy. Both of them were related to Alfred Nobel through their relative in common; Olof Rudbeck, the older, who discovered the lymph system. Also the grave of Alarik Liedbeck, side by side with Per Henrik Ling, at the shore of Brunnsviken in the Royal National Urban Park in Stockholm, Sweden, sheds light over this unique outdoor burial place which was created by Ling.

  • Ek, Amanda
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Physical activity among patients with cardiovascular disease: a predictor of hospital care utilisation and mortality in clinical work2020Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Guidelines highlight the importance of physical activity (PA) in secondary prevention of cardiovascular disease (CVD) within the healthcare sector. Previous studies have mainly focused on the effects of PA at moderate-vigorous intensity performed within exercise-based cardiac rehabilitation (CR). However, only a minority of patients with CVD participate in exercise-based CR, and it is not known to what extent the guidelines for PA are implemented in clinical work. This leads to a knowledge gap in PA levels among patients with CVD, and the potential association of PA with hospital care utilisation and all-cause mortality. The overall aim of this thesis was to investigate PA and its importance for patients with CVD, and to what extent it is promoted during clinical work. The associations between self-rated PA level, changes in self-rated PA level, and sedentary time (SED) with hospital care utilisation and all-cause mortality were explored in three cohort studies (Studies I-III). Data were collected via questionnaires, medical records and national registers. Study I explored everyday PA, physical exercise and SED among patients with CVD (n=1148) prior to admittance to a cardiac ward at two of the hospitals in Stockholm. Studies II and III explored PA (of at least moderate intensity) post hospitalisation, and included 30 644 and 22 227 patients with myocardial infarction (MI), respectively, from the national SWEDHEART registry. Finally, in Study IV, healthcare professionals’ (n=251) stated importance and clinical work to promote healthy lifestyle habits (alcohol consumption, eating habits, physical activity, and smoking) were explored in a cross-sectional study. All healthcare professionals working on cardiac departments in two hospitals in Stockholm were included.

    The main findings were:

    • PA level (everyday PA, physical exercise, total PA level) and SED pre and post hospitalisation for cardiac events were found to be significant predictors of hospital care duration, readmission and mortality. The effects of high PA level and low SED did not differ between CVD diagnosis, sex, age, or comorbid states such as individuals with and without diabetes mellitus type II, kidney dysfunction, hypertension or dyslipidaemia.

    • There were no differences between individuals reporting a moderate or high level of PA or a medium or low level of SED, illustrating that “a little activity is better than nothing” and that the greatest health benefits would be achieved by increasing PA among the most inactive patients with CVD.

    • Changes in PA level during the first year post MI are important. Increased PA lowered the risk of mortality, and decreased PA increased the risk of mortality in patients post MI.

    • Healthcare professionals considered it important to promote lifestyle habits among patients within the healthcare sector in general, as well as in their own clinical work. However, there was a difference between stated importance and clinical practice as only a minority of healthcare professionals asked or provided counselling on healthy lifestyle habits. Our results indicated a relationship between promoting patients’ lifestyle habits in clinical work, and if they perceived clear organisational routines and objectives.

    In conclusion, the results of this thesis have a clinical impact. Firstly, asking patients on a cardiac department about their PA level and SED may identify individuals in need of behavioural changes. By identifying and supporting individuals who need to increase their PA level, clinicians may potentially decrease the utilisation of inpatient care and also lower the risk of all-cause mortality among individuals with a CVD diagnosis. Secondly, this information is of great predictive value, and PA can be seen as an additional marker of disease severity.

  • Nilsson, Finn
    et al.
    Karlstads Universitet.
    Lundkvist, Erik
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Sport Psychology research group.
    Wagnsson, Stefan
    Karlstads Universitet.
    Gustafsson, Henrik
    Karlstads Universitet.
    Has the second ‘running boom’ democratized running? A study on the sociodemographic characteristics of finishers at the world’s largest half marathon2019In: Sport in Society: Cultures, Media, Politics, Commerce, ISSN 1743-0437, E-ISSN 1743-0445Article in journal (Refereed)
    Abstract [en]

    Previous studies have shown that runners differ in terms of sociodemographic characteristics. However, given the increase in participants at running races, the question arises whether these sociodemographic differences have been erased and if the second running boom has democratized running. An online questionnaire was sent to a randomized sample (n = 2378) of finishers at the 2017 Gothenburg half marathon (Göteborgsvarvet). The self-reported sociodemographic variables were then compared to Swedish national averages. The results show that Göteborgsvarvet finishers are considerably more likely to be men, well-educated and employed, compared to the general population of Sweden. This study indicates, therefore, that half marathon finishers are still distinctly different in terms of sociodemographic variables compared to the general population. These differences need to be taken into consideration when conclusions are drawn concerning running and its health effects on runners.

  • Godhe, Manne
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Helge, Torbjörn
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Forsberg, Artur
    Karlsson, Eddy
    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.
    Isokinetic muscle torque and endurance in limbs and trunk in children and adolescents: A longitudinal study2019In: Clinical and Medical Investigations, ISSN 2398-5763, Vol. 4, no 4Article in journal (Refereed)
    Abstract [en]

    Purpose: To measure isokinetic peak torque during elbow, knee and trunk extension and flexion and muscle endurance during elbow and knee extension.

    Method: Muscle endurance and peak torque were measured using Cybex methodology in totally 115 boys and 48 girls from 8 to 15 years of age most of them for five years.

    Results: Knee muscle endurance was mainly unchanged while elbow fatigue index was lightly reduced from 11 to 15 years in both sexes with no difference between sexes. From the youngest ages to adolescence peak absolute (N.m) and normalized (N.m/kg body mass) torque increases in all measures with highest increase in the trunk and lowest in elbow activities. During elbow activity boys are stronger than girls from age 11. For trunk and knee activity the sex differences start at age 14 years. Knee, elbow and trunk extension/flexion ratios as well as knee/elbow both extension and flexion ratios are mainly unchanged with increasing age with no differences between sexes.

    Conclusion: Data indicate that elbow isokinetic strength and endurance profile is partly different from corresponding data during knee and trunk activity.

  • Eklund, Annika
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Hälsa och välmående i samband med utökad fysisk aktivitet i form av pulspass: Ungdomars uppfattning om hälsa, samt välmående i samband med utökad fysisk aktivitet i skolan2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Aim

    The purpose of the study is to investigate how physical activity affects the students' perception of their own health in connection with increased activity at school in the form of pulse passes. - Which health definitions can be identified from the students' story of their health? - How do the pupils experience their well-being in connection with the increased physical activity in the school for their overall health?

    Method

    In order to get answers to the students' perception of the issues in connection with increased physical activity in the form of two 30-minute heart rate passes per week, interviews were conducted. Normal sports lessons are 60min twice a week. The selection group consisted of six 13-year-old girls who attend grade 7. They have a mother tongue other than Swedish and are specifically selected with the help of the students' sports teachers. A previous quantitative sub-study in the research study "Movement for Better Health and Learning" has carried out and which has given remarkably good results regarding well-being in this particular group.

    Results

    The study shows that the girls' perception of the concept of health and what this stands for is about feeling good both physically and mentally. This means that you move and have good eating habits. They also believe that it is important to have good relationships and a good social interaction in order to feel good. They also associate the concept of health with any kind of sports. In connection with increased physical activity in the school, the pupils' perception of their well-being and health is largely that they have more energy to cope with the school work in a better way compared to earlier. They experience increased concentration and strength to keep focus and get more things done in school. The pupils also feel stronger compared to earlier and have also changed their dietary habits, especially with regard to breakfast habits, as they eat more regularly and healthier.

    Conclusions

    The pupils' perception of health as a concept revolves around feeling good both physically and mentally, that you move around and have good eating habits. An important aspect is also to have a good social interaction in order to feel good. Sport and activities are associated with the health concept. The students in the study state that they have improved their school performance through increased concentration ability and perseverance in being able to perform at school. They have improved their eating habits and feel stronger than before.

  • Väisänen, Daniel
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Ekblom, Örjan
    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 Bak, Elin
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Andersson, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Karolinska institutet.
    Nilsson, Jonna
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Ekblom, Maria
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
    Criterion validity of the Ekblom-Bak and the Åstrand submaximal test in an elderly population.2020In: European Journal of Applied Physiology, ISSN 1439-6319, E-ISSN 1439-6327, Vol. 120, no 2, p. 307-316Article in journal (Refereed)
    Abstract [en]

    PURPOSE: The aim of this study was to validate the submaximal Ekblom-Bak test (EB-test) and the Åstrand test (Å-test) for an elderly population.

    METHODS: Participants (n = 104), aged 65-75 years, completed a submaximal aerobic test on a cycle ergometer followed by an individually adjusted indirect calorimetry VO2max test on a treadmill. The HR from the submaximal test was used to estimate VO2max using both the EB-test and Å-test equations.

    RESULTS: The correlation between measured and estimated VO2max using the EB method and Å method in women was r = 0.64 and r = 0.58, respectively and in men r = 0.44 and r = 0.44, respectively. In women, the mean difference between estimated and measured VO2max was - 0.02 L min-1 (95% CI - 0.08 to 0.04) for the EB method and - 0.12 L min-1 (95% CI - 0.22 to - 0.02) for the Å method. Corresponding values for men were 0.05 L min-1 (95% CI - 0.04 to 0.14) and - 0.28 L min-1 (95% CI - 0.42 to - 0.14), respectively. However, the EB method was found to overestimate VO2max in men with low fitness and the Å method was found to underestimate VO2max in both women and men. For women, the coefficient of variance was 11.1%, when using the EB method and 19.8% when using the Å method. Corresponding values for men were 11.6% and 18.9%, respectively.

    CONCLUSION: The submaximal EB-test is valid for estimating VO2max in elderly women, but not in all elderly men. The Å-test is not valid for estimating VO2max in the elderly.

  • Hammarström, Daniel
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group. Section for Health and Exercise Physiology, Department of Public Health and Sport Sciences, Inland Norway.
    Øfsteng, Sjur
    Section for Health and Exercise Physiology, Department of Public Health and Sport Sciences, Inland Norway.
    Koll, Lise
    Innlandet Hospital Trust, Lillehammer, Norway.
    Hanestadhaugen, Marita
    Innlandet Hospital Trust, Lillehammer, Norway.
    Hollan, Ivana
    Hospital for Rheumatic Diseases, Lillehammer, Norway.
    Apro, William
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    Whist, Jon Elling
    Innlandet Hospital Trust, Lillehammer, Norway.
    Blomstrand, Eva
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Eva Blomstrand's research group.
    Rønnestad, Bent R
    Section for Health and Exercise Physiology, Department of Public Health and Sport Sciences, Inland Norway.
    Ellefsen, Stian
    Section for Health and Exercise Physiology, Department of Public Health and Sport Sciences, Inland Norway.
    Benefits of higher resistance-training volume are related to ribosome biogenesis.2020In: Journal of Physiology, ISSN 0022-3751, E-ISSN 1469-7793, Vol. 598, no 3, p. 543-565Article in journal (Refereed)
    Abstract [en]

    KEY POINTS: For individuals showing suboptimal adaptations to resistance training, manipulation of training volume is a potential measure to facilitate responses. This remains unexplored. Here, 34 untrained individuals performed contralateral resistance training with moderate and low volume for 12 weeks. Moderate volume led to larger increases in muscle cross-sectional area, strength and type II fibre-type transitions. These changes coincided with greater activation of signalling pathways controlling muscle growth and greater induction of ribosome synthesis. Thirteen and sixteen participants, respectively, displayed clear benefits of moderate-volume training on muscle hypertrophy and strength. This coincided with greater total RNA accumulation in the early-phase of the training period, suggesting that ribosomal biogenesis regulates the dose-response relationship between training volume and muscle hypertrophy. These results demonstrate that there is a dose-dependent relationship between training volume and outcomes. On the individual level, benefits of higher training volume were associated with increased ribosomal biogenesis.

    ABSTRACT: Resistance-exercise volume is a determinant of training outcomes. However not all individuals respond in a dose-dependent fashion. In this study, 34 healthy individuals (males n = 16, 23.6 (4.1) years; females n = 18, 22.0 (1.3)) performed moderate- (3 sets per exercise, MOD) and low-volume (1 set, LOW) resistance training in a contralateral fashion for 12 weeks (2-3 sessions × week-1 ). Muscle cross-sectional area (CSA) and strength were assessed at weeks 0 and 12, along with biopsy sampling (m. Vastus lateralis). Muscle biopsies were also sampled before and one hour after the fifth session (Week 2). MOD resulted in larger increases in muscle CSA (5.2 (3.8)% versus 3.7 (3.7)%, P < 0.001) and strength (3.4-7.7% difference, all P < 0.05. This coincided with greater reductions in type IIX fibres from week 0 to 12 (MOD, -4.6; LOW -3.2%-point), greater phosphorylation of S6-kinase 1 (p85 S6K1Thr412 , 19%; p70 S6K1Thr389 , 58%) and ribosomal protein S6Ser235/236 (37%), greater rested-state total RNA (8.8%) and greater exercise-induced c-Myc mRNA expression (25%; Week 2, all P < 0.05). Thirteen and sixteen participants, respectively, displayed clear benefits in response to MOD on muscle hypertrophy and strength. Benefits were associated with greater accumulation of total RNA at Week 2 in the MOD leg, with every 1% difference increasing the odds of MOD benefit by 7.0% (P = 0.005) and 9.8% (P = 0.002). In conclusion, MOD led to greater functional and biological adaptations than LOW. Associations between dose-dependent total RNA accumulation and increases in muscle mass and strength points to ribosome biogenesis as a determinant of dose-dependent training responses. This article is protected by copyright. All rights reserved.

  • Lundkvist, Erik
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Sport Psychology research group.
    Gustafsson, Henrik
    Karlstads universitet.
    Madigan, Daniel
    York St John Univeristy.
    Estimating the prevalence of athlete burnout based on clinical cut-off scores2019Conference paper (Refereed)
    Abstract [en]

    Burnout is a psychosocial construct that has been extensively studied in athletes. Burnout is a significant threat to an athlete’s mental health and increases the risk of dropout from sport (Gustafsson, Madigan, & Lundkvist, 2017). However, little is known about prevalence of clinical-levels of burnout in athletes. This study therefore aimed to estimate the prevalence of athlete burnout based on clinical cut-off scores taken from the Shirom Melamed Burnout Questionnaire (SMBQ). To do so, cut-off scores were converted from the SMBQ to the Athlete Burnout Questionnaire (ABQ). This provided a cut-off score of 3.14. Data were derived from one cross-sectional sample (N = 1,931) and one 10-week longitudinal sample (N = 186; 10 waves). Analyses focused on the physical and emotional exhaustion subscale of the ABQ. In the longitudinal sample, the stability of the cut-offs was examined (i.e., those athletes scoring over 3.14 for over 50% of the time-points, versus those who never scored above 3.14). For the cross-sectional sample, 13% of athletes scored above the clinical cut-off score. For the longitudinal sample, 7.1% of athletes scored above the cut-off on over 50% of occasions, while 77.6% of athletes never scored above the cut-off score on any occasion. The present findings suggest that the estimated prevalence of athlete burnout differs when cross-sectional data are analysed than when longitudinal data are utilised. The findings reiterate that a significant proportion of athletes are at risk of burnout and that prevalence seem to be similar comparing with student- and working populations.

  • Kallings, Lena
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Olsson, Sven Johan Gustav
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Ekblom, Örjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Ekblom Bak, Elin
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Börjesson, Mats
    Göteborg Universitet.
    The SED-GIH: A Single-Item Question for Assessment of Stationary Behavior-A Study of Concurrent and Convergent Validity.2019In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 16, no 23, article id E4766Article in journal (Refereed)
    Abstract [en]

    The unfavorable health consequences of prolonged time spent sedentary (stationary) make accurate assessment in the general population important. However, for many existing questionnaires, validity for identifying stationary time has not been shown or has shown low validity. This study aimed to assess the concurrent and convergent validity of the GIH stationary single-item question (SED-GIH). Data were obtained in 2013 and 2014 from two Swedish cohorts. A total of 711 men and women provided valid accelerometer data (Actigraph GT3X+) and were included for concurrent validity analyses. A total of 560 individuals answered three additional commonly used sedentary questions, and were included for convergent validity analysis. The SED-GIH displayed a significant correlation with total stationary time (rs = 0.48) and time in prolonged stationary time (rs = 0.44). The ROC analysis showed an AUC of 0.72 for identifying individuals with stationary time over 600 min/day. The SED-GIH correlated significantly with other previously used questions (r = 0.72-0.89). The SED-GIH single-item question showed a relatively high agreement with device-assessed stationary behavior and was able to identify individuals with high levels of stationary time. Thus, the SED-GIH may be used to assess total and prolonged stationary time. This has important implications, as simple assessment tools of this behavior are needed in public health practice and research.

  • Holmlund, Tobias
    et al.
    Karolinska Institutet, Stockholm, Sweden.
    Ekblom Bak, Elin
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Franzén, Erika
    Karolinska Institutet, Stockholm, Sweden.
    Hultling, Claes
    Karolinska Institutet, Stockholm, Sweden.
    Wahman, Kerstin
    Karolinska Institutet, Stockholm, Sweden.
    Intensity of physical activity as a percentage of peak oxygen uptake, heart rate and Borg RPE in motor-complete para- and tetraplegia.2019In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 14, no 12, article id e0222542Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: The aims were to describe VO2peak, explore the potential influence of anthropometrics, demographics and level of physical activity within each cohort; b) to define common, standardized activities as percentages of VO2peak and categorize these as light, moderate and vigorous intensity levels according to present classification systems, and c) to explore how clinically accessible methods such as heart-rate monitoring and Borg rating of perceived exertion (RPE) correlate or can describe light, moderate and vigorous intensity levels.

    DESIGN: Cross sectional.

    SETTING: Rehabilitation facility and laboratory environment.

    SUBJECTS: Sixty-three individuals, thirty-seven (10 women) with motor-complete paraplegia (MCP), T7-T12, and twenty-six (7 women) with motor-complete tetraplegia (MCT), C5-C8.

    INTERVENTIONS: VO2peak was obtained during a graded peak test until exhaustion, and oxygen uptake during eleven different activities was assessed and categorized using indirect calorimetry.

    MAIN OUTCOME MEASURES: VO2peak, Absolute and relative oxygen consumption, Borg RPE.

    RESULTS: Absolute VO2peak was significantly higher in men than in women for both groups, with fairly small differences in relative VO2peak. For MCP sex, weight and time spent in vigorous-intensity activity explained 63% of VO2peak variance. For MCT sex and time in vigorous-intensity activity explained 55% of the variance. Moderate intensity corresponds to 61-72% HRpeak and RPE 10-13 for MCP vs. 71-79% HRpeak, RPE 13-14 for MCT.

    CONCLUSION: Using current classification systems, eleven commonly performed activities were categorized in relative intensity terms, (light, moderate and vigorous) based on percent of VO2peak, HRpeak and Borg RPE. This categorization enables clinicians to better guide persons with SCI to meet required physical activity levels.

  • Graffman-Sahlberg, Marie
    et al.
    Katedralskolan, Uppsala.
    Sundblad, Gunilla Brun
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
    Lundvall, Suzanne
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogisk idrottsforskning.
    Learning health in Swedish physical education: A critical case study of students’ encounters with physical fitness and health as a learning object2019In: Scandinavian Sport Studies Forum, ISSN 2000-088X, E-ISSN 2000-088X, p. 227-250Article in journal (Refereed)
    Abstract [en]

    The interfaces between health, physical education and schooling have a long history. Critical questions are being raised about the enforcement of learning a particular health practice in school physical education (PE). The present study departures from a practice-based research project evaluating a pedagogical model. The aim of the case study was to explore upper secondary students' learning and understandings of a specific learning object, aerobic fitness and how this influences health, after participating in a period of a longer lab work in the context of Swedish physical education. A phenomenographic approach was used when analyzing the students' written reports to identify and distinguish the variations of learning outcomes and understandings that emerged. Expectations of physical performance created tensions, and even conflicts, between the student-centred assignments and existing traditions within the field of physical education. The findings underscore the risk of neoliberal logics underpinning health education in the learning culture of PE. Further studies are needed where teaching methods/models and student learning are paid attention to in order to move away from teaching to be healthy towards students learning about health and make sense of themselves as healthy. This may offer new educational perspectives.

  • Bojsen-Møller, Emil
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology.
    Boraxbekk, Carl-Johan
    Copenhagen University Hospital, Hvidovre, Denmark.
    Ekblom, Örjan
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Åstrand Laboratory of Work Physiology, Björn Ekblom's research group.
    Blom, Victoria
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Sport Psychology research group.
    Ekblom, Maria
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control. Karolinska institutet.
    Relationships between Physical Activity, Sedentary Behaviour and Cognitive Functions in Office Workers.2019In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 16, no 23, article id E4721Article in journal (Refereed)
    Abstract [en]

    Increasing evidence from animal experiments suggests that physical activity (PA) promotes neuroplasticity and learning. For humans, most research on the relationship between PA, sedentary behaviour (SB), and cognitive function has relied on self-reported measures of behaviour. Office work is characterised by high durations of SB combined with high work demands. While previous studies have shown that fitter office workers outperform their less fit colleagues in cognitive tests, the importance of PA and SB remains unknown. This study investigated associations between objectively measured PA and SB, using hip-worn accelerometers, and cognitive functions in 334 office workers. Time spent in moderate-to-vigorous PA (MVPA) was not associated with any cognitive outcome. However, time spent in SB tended to be positively associated with words recalled in free recall (β = 0.125). For the least fit participants, the average length of MVPA bouts was favourably related to Stroop performance (β = -0.211), while for the fitter individuals, a longer average length of MVPA bouts was related to worse recognition (β = -0.216). While our findings indicate that the length of MVPA bouts was associated with better Stroop performance in the least fit participants, our findings do not support the notion that more time spent in MVPA or less time in SB is associated with better cognitive function.

  • Helgadóttir, Björg
    et al.
    Karolinska Institutet, Stockholm, Sweden.
    Mather, Lisa
    Karolinska Institutet, Stockholm, Sweden.
    Narusyte, Jurgita
    Karolinska Institutet, Stockholm, Sweden.
    Ropponen, Annina
    Karolinska Institutet, Stockholm, Sweden.
    Blom, Victoria
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Sport Psychology research group.
    Svedberg, Pia
    Karolinska Institutet, Stockholm, Sweden.
    Transitioning from sickness absence to disability pension - the impact of poor health behaviours: a prospective Swedish twin cohort study.2019In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 9, no 11, article id e031889Article in journal (Refereed)
    Abstract [en]

    OBJECTIVES: To investigate the association between three poor health behaviours (current smoker, high consumption of alcohol and low physical activity levels) and the transition to disability pension (DP) among individuals who have recently been sickness absent. Furthermore, we aimed to explore whether having multiple poor health behaviours increased the risk of transitioning from sickness absence (SA) to DP.

    DESIGN: Prospective twin cohort study.

    SETTING: Sweden.

    PARTICIPANTS: Twins aged 20-46 who had participated in a survey and been on SA (>14 days) in the year preceding baseline (date of answering the questionnaire).

    MAIN OUTCOME MEASURE: Incident DP during the follow-up which ended on 31 December 2012 (mean 5.2 years). A national register with full coverage provided data on DP.

    RESULTS: The Cox proportional-hazards regression analyses showed that current smokers had a higher risk of transitioning from SA to DP compared with never smokers (HR 1.76; 95% CI 1.08 to 2.84). Alcohol use and lack of physical activity as well as poor health behaviour sum score showed no significant associations.

    CONCLUSIONS: Being a current smoker influences the transition from SA to DP. Although non-significant, there were indications that more physical activity and fewer poor health behaviours could reduce the risk of exiting the labour market through DP. Improving health behaviours among people on SA could be a valuable tool for preventing the transition to DP.

  • Qvarfordt, Anna
    et al.
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogisk idrottsforskning. University of Gävle, Sweden.
    Ahmadi, Nader
    University of Gävle, Sweden.
    Bäckström, Åsa
    Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Forskningsgruppen för pedagogisk idrottsforskning.
    Hoff, David
    University of Lund, Sweden.
    Limitations and duties: elite athletes’ perceptions of compliance with anti-doping rules2019In: Sport in Society: Cultures, Media, Politics, Commerce, ISSN 1743-0437, E-ISSN 1743-0445, p. 1-20Article in journal (Refereed)
    Abstract [en]

    The main purpose of this article is to examine how elite athletes perceive their own responsibilities and possibilities to be compliant with the anti-doping regulations, and to draw conclusions about what these perceptions mean in relation to the legitimacy of the anti-doping system. A qualitative research design, with interviews conducted with athletes globally, was employed to capture elite sportspersons? views on anti-doping policy and procedures. The analysis was based on a theoretical framework on legitimacy. The findings show that athletes? situation is characterized by limited information and a lack of leeway. At the same time, athletes find themselves obliged to be dutiful. We discuss the complex situation of simultaneously facing perceived limitations and duties, and consider the limits that athletes experience in relation to compliance, which may place the legitimacy of the anti-doping system at risk.