Gymnastik- och idrottshögskolan, GIH

Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Frequent, Short Physical Activity Breaks Reduce Prefrontal Cortex Activation but Preserve Working Memory in Middle-Aged Adults: ABBaH Study.
Swedish School of Sport and Health Sciences, GIH, Department of Physical Activity and Health. (Fysisk aktivitet och hjärnhälsa)ORCID iD: 0000-0001-7175-0093
Swedish School of Sport and Health Sciences, GIH, Department of Physiology, Nutrition and Biomechanics. (Fysisk aktivitet och hjärnhälsa)ORCID iD: 0000-0002-7456-8606
Swedish School of Sport and Health Sciences, GIH, Department of Physical Activity and Health. (Fysisk aktivitet och hjärnhälsa)ORCID iD: 0000-0001-9526-2967
School of Health Sciences and Priority Research Centre for Stroke and Brain Injury, University of Newcastle, Callaghan, NSW, Australia.; Centre for Research Excellence in Stroke Recovery and Rehabilitation, Florey Institute of Neuroscience and Hunter Medical Research Institute, Callaghan, NSW, Australia..
Show others and affiliations
2021 (English)In: Frontiers in Human Neuroscience, E-ISSN 1662-5161, Vol. 15, article id 719509Article in journal (Refereed) Published
Abstract [en]

Prolonged sitting is increasingly common and may possibly be unfavorable for cognitive function and mood. In this randomized crossover study, the effects of frequent, short physical activity breaks during prolonged sitting on cognitive task-related activation of the prefrontal cortex were investigated. The effects on working memory, psychological factors, and blood glucose were also examined, and whether arterial stiffness moderated prefrontal cortex activation. Thirteen subjects (mean age 50.5 years; eight men) underwent three 3-h sitting conditions, interrupted every 30-min by a different 3-min break on separate, randomized-ordered days: seated social interactions (SOCIAL), walking (WALK), or simple resistance activities (SRA). Arterial stiffness was assessed at baseline. Before and after each 3-h condition, psychological factors (stress, mood, sleepiness, and alertness) were assessed through questionnaires and functional near-infrared spectroscopy (fNIRS) was used to measure changes in prefrontal oxygenated hemoglobin (Oxy-Hb), indicative of cortical activation, while performing working memory tasks [1- (baseline), 2-, and 3-back]. Blood glucose levels were continuously measured throughout the conditions. Results revealed no significant changes in Oxy-Hb during the 2-back compared with the 1-back test in any condition, and no time-by-condition interactions. During the 3-back test, there was a significant decrease in Oxy-Hb compared with the 1-back after the WALK condition in the right prefrontal cortex, but there were no time-by-condition interactions, although 3-back reaction time improved only in the WALK condition. Mood and alertness improved after the WALK condition, which was significantly different from the SOCIAL condition. Arterial stiffness moderated the effects, such that changes in Oxy-Hb were significantly different between WALK and SOCIAL conditions only among those with low arterial stiffness. Blood glucose during the interventions did not differ between conditions. Thus, breaking up prolonged sitting with frequent, short physical activity breaks may reduce right prefrontal cortex activation, with improvements in some aspects of working memory, mood, and alertness. Clinical Trial Registration:www.ClinicalTrials.gov, identifier NCT04137211.

Place, publisher, year, edition, pages
Frontiers Media S.A., 2021. Vol. 15, article id 719509
Keywords [en]
cerebral blood flow, cognition, exercise, functional near-infrared spectroscopy, sedentary
National Category
Neurosciences
Research subject
Medicine/Technology
Identifiers
URN: urn:nbn:se:gih:diva-6803DOI: 10.3389/fnhum.2021.719509ISI: 000701370000001PubMedID: 34602995OAI: oai:DiVA.org:gih-6803DiVA, id: diva2:1601074
Projects
Fysisk aktivitet och hälsosamma hjärnfunktioner bland kontorsarbetare. Delprojekt 2 Akuta interventioner
Part of project
Physical activity and healthy brain functions in office workers, Knowledge FoundationAvailable from: 2021-10-06 Created: 2021-10-06 Last updated: 2024-02-27

Open Access in DiVA

fulltext(2176 kB)181 downloads
File information
File name FULLTEXT01.pdfFile size 2176 kBChecksum SHA-512
8a26c4a0567fbc3f51449a099e7cee810e41b1d4f6ec4ad42bb17fb9074f78a765f15f9e2b9c16bfe27cc1d899da9936c97ad53f39e12717f33c6a57f1c59578
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Authority records

Heiland, Emerald GTarassova, OlgaFernström, MariaEkblom, ÖrjanEkblom, Maria

Search in DiVA

By author/editor
Heiland, Emerald GTarassova, OlgaFernström, MariaEkblom, ÖrjanEkblom, Maria
By organisation
Department of Physical Activity and HealthDepartment of Physiology, Nutrition and Biomechanics
In the same journal
Frontiers in Human Neuroscience
Neurosciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 184 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 425 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf