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Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study

Loss of muscle mass and strength are seemingly accepted as part of the ageing process, despite ultimately leading to the loss of independence. Resistance exercise is considered to be primary defence against loss of muscle function in older age, but it typically requires access to exercise equipment...

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Detalles Bibliográficos
Autores principales: Perkin, Oliver J., McGuigan, Polly M., Stokes, Keith A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6794984/
https://www.ncbi.nlm.nih.gov/pubmed/31687210
http://dx.doi.org/10.1155/2019/7516939
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author Perkin, Oliver J.
McGuigan, Polly M.
Stokes, Keith A.
author_facet Perkin, Oliver J.
McGuigan, Polly M.
Stokes, Keith A.
author_sort Perkin, Oliver J.
collection PubMed
description Loss of muscle mass and strength are seemingly accepted as part of the ageing process, despite ultimately leading to the loss of independence. Resistance exercise is considered to be primary defence against loss of muscle function in older age, but it typically requires access to exercise equipment often in a gym environment. This pilot study aimed at examining the effect of a 28-day, unsupervised home-based exercise intervention on indices of leg strength and muscle size in healthy older adults. Twenty participants were randomly assigned to either maintain their habitual physical activity levels (Control; n=10; age, 74 (5) years; body mass, 26.3 (3.5) kg/m(2)) or undertake “exercise snacks” twice daily (ES; n=10; age, 70 (4) years; body mass, 25.0 (3.4) kg/m(2)). Both groups consumed 150 g of yogurt at their breakfast meal for the duration of the intervention. Sixty-second sit-to-stand score improved by 31% in ES, with no change in Control (p < 0.01). Large effect sizes were observed for the difference in change scores between the groups for interpolated maximum leg pressing power (6% increase in ES) and thigh muscle cross-sectional area (2% increase in ES). The present pilot data suggest that exercise snacking might be a promising strategy to improve leg muscle function and size in older adults and that further investigation into zero-cost exercise strategies that allow high frequency of training is warranted.
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spelling pubmed-67949842019-11-04 Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study Perkin, Oliver J. McGuigan, Polly M. Stokes, Keith A. J Aging Res Clinical Study Loss of muscle mass and strength are seemingly accepted as part of the ageing process, despite ultimately leading to the loss of independence. Resistance exercise is considered to be primary defence against loss of muscle function in older age, but it typically requires access to exercise equipment often in a gym environment. This pilot study aimed at examining the effect of a 28-day, unsupervised home-based exercise intervention on indices of leg strength and muscle size in healthy older adults. Twenty participants were randomly assigned to either maintain their habitual physical activity levels (Control; n=10; age, 74 (5) years; body mass, 26.3 (3.5) kg/m(2)) or undertake “exercise snacks” twice daily (ES; n=10; age, 70 (4) years; body mass, 25.0 (3.4) kg/m(2)). Both groups consumed 150 g of yogurt at their breakfast meal for the duration of the intervention. Sixty-second sit-to-stand score improved by 31% in ES, with no change in Control (p < 0.01). Large effect sizes were observed for the difference in change scores between the groups for interpolated maximum leg pressing power (6% increase in ES) and thigh muscle cross-sectional area (2% increase in ES). The present pilot data suggest that exercise snacking might be a promising strategy to improve leg muscle function and size in older adults and that further investigation into zero-cost exercise strategies that allow high frequency of training is warranted. Hindawi 2019-10-03 /pmc/articles/PMC6794984/ /pubmed/31687210 http://dx.doi.org/10.1155/2019/7516939 Text en Copyright © 2019 Oliver J. Perkin et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Clinical Study
Perkin, Oliver J.
McGuigan, Polly M.
Stokes, Keith A.
Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study
title Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study
title_full Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study
title_fullStr Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study
title_full_unstemmed Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study
title_short Exercise Snacking to Improve Muscle Function in Healthy Older Adults: A Pilot Study
title_sort exercise snacking to improve muscle function in healthy older adults: a pilot study
topic Clinical Study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6794984/
https://www.ncbi.nlm.nih.gov/pubmed/31687210
http://dx.doi.org/10.1155/2019/7516939
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