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Distinct effects of...
Distinct effects of acute exercise and breaks in sitting on working memory and executive function in older adults: a three-arm, randomised cross-over trial to evaluate the effects of exercise with and without breaks in sitting on cognition
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Wheeler, Michael (författare)
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Green, Daniel (författare)
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Ellis, Kathryn (författare)
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Cerin, Ester (författare)
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Heinonen, Ilkka (författare)
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Naylor, Louise (författare)
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Larsen, Robyn (författare)
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- Wennberg, Patrik, 1972- (författare)
- Umeå universitet,Allmänmedicin
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- Boraxbekk, Carl-Johan, 1980- (författare)
- Umeå universitet,Enheten för demografi och åldrandeforskning (CEDAR),Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital, Hvidovre, Denmark
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Lewis, Jaye (författare)
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Eikelis, Nina (författare)
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Lautenschlager, Nicola (författare)
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Kingwell, Bronwyn (författare)
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Lambert, Gavin (författare)
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Owen, Neville (författare)
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Dunstan, David (författare)
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(creator_code:org_t)
- 2019-04-29
- 2020
- Engelska.
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Ingår i: British Journal of Sports Medicine. - : BMJ Publishing Group Ltd. - 0306-3674 .- 1473-0480. ; 54:13, s. 776-781
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Background: Sedentary behaviour is associated with impaired cognition, whereas exercise can acutely improve cognition.Objective: We compared the effects of a morning bout of moderate-intensity exercise, with and without subsequent light-intensity walking breaks from sitting, on cognition in older adults.Methods: Sedentary overweight/obese older adults with normal cognitive function (n=67, 67±7 years, 31.2±4.1 kg/m2 ) completed three conditions (6-day washout): SIT (sitting): uninterrupted sitting (8 hours, control); EX+SIT (exercise + sitting): sitting (1 hour), moderate-intensity walking (30min), uninterrupted sitting (6.5 hours); and EX+BR (exercise + breaks): sitting (1 hour), moderate-intensity walking (30min), sitting interrupted every 30min with 3min of light-intensity walking (6.5 hours). Cognitive testing (Cogstate) was completed at four time points assessing psychomotor function, attention, executive function, visual learning and working memory. Serum brain-derived neurotrophic growth factor (BDNF) was assessed at six time points. The 8-hour net area under the curve (AUC) was calculated for each outcome.Results: Working memory net AUC z-score·hour (95%CI) was improved in EX+BR with a z-score of +28 (−26 to +81), relative to SIT, −25 (−79 to +29, p=0.04 vs EX+BR). Executive function net AUC was improved in EX+SIT, −8 (− 71 to +55), relative to SIT, −80 (−142 to −17, p=0.03 vs EX+SIT). Serum BDNF net AUC ng/mL·hour (95%CI) was increased in both EX+SIT, +171 (−449 to +791, p=0.03 vs SIT), and EX+BR, +139 (−481 to +759, p=0.045 vs SIT), relative to SIT, −227 (−851 to +396).Conclusion: A morning bout of moderate-intensity exercise improves serum BDNF and working memory or executive function in older adults, depending on whether or not subsequent sitting is also interrupted with intermittent light-intensity walking.
Ämnesord
- SAMHÄLLSVETENSKAP -- Psykologi -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology -- Psychology (hsv//eng)
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Wheeler, Michael
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Green, Daniel
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Ellis, Kathryn
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Cerin, Ester
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Heinonen, Ilkka
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Naylor, Louise
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visa fler...
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Larsen, Robyn
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Wennberg, Patrik ...
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Boraxbekk, Carl- ...
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Lewis, Jaye
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Eikelis, Nina
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Lautenschlager, ...
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Kingwell, Bronwy ...
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Lambert, Gavin
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Owen, Neville
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Dunstan, David
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