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Diurnal pattern of breaks in sedentary time and the physical function of older adults
BACKGROUND: The association of breaks in sedentary time with outcomes of physical function can vary according to the time of day. We examined the association of the diurnal pattern of breaks in sedentary time with physical function outcomes in older adults. METHODS: A cross-sectional analysis was co...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9990209/ https://www.ncbi.nlm.nih.gov/pubmed/36879250 http://dx.doi.org/10.1186/s13690-023-01050-1 |
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author | Lai, Ting-Fu Liao, Yung Lin, Chien-Yu Hsueh, Ming-Chun Koohsari, Mohammad Javad Shibata, Ai Oka, Koichiro Chan, Ding-Cheng |
author_facet | Lai, Ting-Fu Liao, Yung Lin, Chien-Yu Hsueh, Ming-Chun Koohsari, Mohammad Javad Shibata, Ai Oka, Koichiro Chan, Ding-Cheng |
author_sort | Lai, Ting-Fu |
collection | PubMed |
description | BACKGROUND: The association of breaks in sedentary time with outcomes of physical function can vary according to the time of day. We examined the association of the diurnal pattern of breaks in sedentary time with physical function outcomes in older adults. METHODS: A cross-sectional analysis was conducted among 115 older adults (≥60 years). The overall and time-specific breaks (morning: 06:00–12:00; afternoon: 12:00–18:00; evening: 18:00–24:00) in sedentary time were assessed using a triaxial accelerometer (Actigraph GT3X+). A break in sedentary time was defined as at least 1 min where the accelerometer registered ≥100 cpm following a sedentary period. Five physical function outcomes were assessed: handgrip strength (dynamometer), balance ability (single leg stance), gait speed (11-m walking), basic functional mobility (time up and go), and lower-limb strength (five times sit-to-stand). Generalized linear models were used to examine the associations of the overall and time-specific breaks in sedentary time with the physical function outcomes. RESULTS: Participants showed an average of 69.4 breaks in sedentary time during the day. Less frequent breaks in the evening (19.3) were found than that in the morning (24.3) and the afternoon (25.3) (p < 0.05). Breaks in sedentary time during the day were associated with less time on gait speed in older adults (exp (β) = 0.92, 95% confidence interval [CI] 0.86–0.98; p < 0.01). Time-specific analysis showed that breaks in sedentary time were associated with less time on gait speed (exp (β) = 0.94, 95% CI 0.91–0.97; p < 0.01), basic functional mobility (exp (β) = 0.93, 95% CI 0.89–0.97; p < 0.01), and lower-limb strength (exp (β) = 0.92, 95% CI 0.87–0.97; p < 0.01) in the evening only. CONCLUSION: A break in sedentary time, particularly during the evening, was associated with better lower extremity strength in older adults. Further strategies to interrupt sedentary time with frequent breaks, with an emphasis on evening hours, can be helpful to maintain and improve physical function in older adults. |
format | Online Article Text |
id | pubmed-9990209 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-99902092023-03-08 Diurnal pattern of breaks in sedentary time and the physical function of older adults Lai, Ting-Fu Liao, Yung Lin, Chien-Yu Hsueh, Ming-Chun Koohsari, Mohammad Javad Shibata, Ai Oka, Koichiro Chan, Ding-Cheng Arch Public Health Research BACKGROUND: The association of breaks in sedentary time with outcomes of physical function can vary according to the time of day. We examined the association of the diurnal pattern of breaks in sedentary time with physical function outcomes in older adults. METHODS: A cross-sectional analysis was conducted among 115 older adults (≥60 years). The overall and time-specific breaks (morning: 06:00–12:00; afternoon: 12:00–18:00; evening: 18:00–24:00) in sedentary time were assessed using a triaxial accelerometer (Actigraph GT3X+). A break in sedentary time was defined as at least 1 min where the accelerometer registered ≥100 cpm following a sedentary period. Five physical function outcomes were assessed: handgrip strength (dynamometer), balance ability (single leg stance), gait speed (11-m walking), basic functional mobility (time up and go), and lower-limb strength (five times sit-to-stand). Generalized linear models were used to examine the associations of the overall and time-specific breaks in sedentary time with the physical function outcomes. RESULTS: Participants showed an average of 69.4 breaks in sedentary time during the day. Less frequent breaks in the evening (19.3) were found than that in the morning (24.3) and the afternoon (25.3) (p < 0.05). Breaks in sedentary time during the day were associated with less time on gait speed in older adults (exp (β) = 0.92, 95% confidence interval [CI] 0.86–0.98; p < 0.01). Time-specific analysis showed that breaks in sedentary time were associated with less time on gait speed (exp (β) = 0.94, 95% CI 0.91–0.97; p < 0.01), basic functional mobility (exp (β) = 0.93, 95% CI 0.89–0.97; p < 0.01), and lower-limb strength (exp (β) = 0.92, 95% CI 0.87–0.97; p < 0.01) in the evening only. CONCLUSION: A break in sedentary time, particularly during the evening, was associated with better lower extremity strength in older adults. Further strategies to interrupt sedentary time with frequent breaks, with an emphasis on evening hours, can be helpful to maintain and improve physical function in older adults. BioMed Central 2023-03-06 /pmc/articles/PMC9990209/ /pubmed/36879250 http://dx.doi.org/10.1186/s13690-023-01050-1 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Lai, Ting-Fu Liao, Yung Lin, Chien-Yu Hsueh, Ming-Chun Koohsari, Mohammad Javad Shibata, Ai Oka, Koichiro Chan, Ding-Cheng Diurnal pattern of breaks in sedentary time and the physical function of older adults |
title | Diurnal pattern of breaks in sedentary time and the physical function of older adults |
title_full | Diurnal pattern of breaks in sedentary time and the physical function of older adults |
title_fullStr | Diurnal pattern of breaks in sedentary time and the physical function of older adults |
title_full_unstemmed | Diurnal pattern of breaks in sedentary time and the physical function of older adults |
title_short | Diurnal pattern of breaks in sedentary time and the physical function of older adults |
title_sort | diurnal pattern of breaks in sedentary time and the physical function of older adults |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9990209/ https://www.ncbi.nlm.nih.gov/pubmed/36879250 http://dx.doi.org/10.1186/s13690-023-01050-1 |
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