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Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days
Understanding how physical activity (PA) patterns vary within and between days may guide PA promotion in young people. We aimed to 1) describe and compare the frequency (bouts/day) and duration (min/bout) of bouts of moderate-to-vigorous intensity PA (MVPA) on weekdays vs. weekends and in-school vs....
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5107648/ https://www.ncbi.nlm.nih.gov/pubmed/27843758 http://dx.doi.org/10.1016/j.pmedr.2016.10.007 |
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author | Brooke, Hannah L Atkin, Andrew J Corder, Kirsten Brage, Soren van Sluijs, Esther MF |
author_facet | Brooke, Hannah L Atkin, Andrew J Corder, Kirsten Brage, Soren van Sluijs, Esther MF |
author_sort | Brooke, Hannah L |
collection | PubMed |
description | Understanding how physical activity (PA) patterns vary within and between days may guide PA promotion in young people. We aimed to 1) describe and compare the frequency (bouts/day) and duration (min/bout) of bouts of moderate-to-vigorous intensity PA (MVPA) on weekdays vs. weekends and in-school vs. out-of-school, and 2) assess associations of bout frequency and duration in these time-segments with overall PA. We used cross-sectional accelerometer data from 2737 children (aged 6–19 years) in the United States National Health and Nutrition Examination Survey (NHANES) 2003–2006. A bout was defined as MVPA (≥ 2000 counts per minute [cpm]) lasting ≥ 3 min. Adjusted Wald tests were used to assess differences in bout characteristics between time-segments. Linear regression was used to examine the association of time-segment specific bout characteristics with daily minutes of MVPA and PA volume (average cpm). Bout frequency was higher on weekdays than weekends (median [IQR] 4.3 [2.2–7.2] vs. 3.0 [1.0–6.5] bouts/day, p < 0.001); however, bout duration did not differ (4.7 [4.0–5.7] vs. 4.5 [3.7–5.8] min/bout, p = 0.33). More bouts were accumulated out-of-school compared with in-school (2.2 [1.0–4.0] vs. 1.8 [0.8–3.2] bouts/day, p < 0.001), but bout duration was similar (4.7 [3.8–5.8] vs. 4.5 [3.8–5.7] min/bout, p = 0.158). For all time-segments, the frequency and duration of bouts of MVPA were independently and positively associated with overall MVPA and PA volume. In conclusion, the characteristics of children's PA vary within and between days; accounting for this in intervention design may improve future interventions. However, increasing bout frequency or duration in any time-segment may be beneficial for overall PA. |
format | Online Article Text |
id | pubmed-5107648 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-51076482016-11-14 Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days Brooke, Hannah L Atkin, Andrew J Corder, Kirsten Brage, Soren van Sluijs, Esther MF Prev Med Rep Regular Article Understanding how physical activity (PA) patterns vary within and between days may guide PA promotion in young people. We aimed to 1) describe and compare the frequency (bouts/day) and duration (min/bout) of bouts of moderate-to-vigorous intensity PA (MVPA) on weekdays vs. weekends and in-school vs. out-of-school, and 2) assess associations of bout frequency and duration in these time-segments with overall PA. We used cross-sectional accelerometer data from 2737 children (aged 6–19 years) in the United States National Health and Nutrition Examination Survey (NHANES) 2003–2006. A bout was defined as MVPA (≥ 2000 counts per minute [cpm]) lasting ≥ 3 min. Adjusted Wald tests were used to assess differences in bout characteristics between time-segments. Linear regression was used to examine the association of time-segment specific bout characteristics with daily minutes of MVPA and PA volume (average cpm). Bout frequency was higher on weekdays than weekends (median [IQR] 4.3 [2.2–7.2] vs. 3.0 [1.0–6.5] bouts/day, p < 0.001); however, bout duration did not differ (4.7 [4.0–5.7] vs. 4.5 [3.7–5.8] min/bout, p = 0.33). More bouts were accumulated out-of-school compared with in-school (2.2 [1.0–4.0] vs. 1.8 [0.8–3.2] bouts/day, p < 0.001), but bout duration was similar (4.7 [3.8–5.8] vs. 4.5 [3.8–5.7] min/bout, p = 0.158). For all time-segments, the frequency and duration of bouts of MVPA were independently and positively associated with overall MVPA and PA volume. In conclusion, the characteristics of children's PA vary within and between days; accounting for this in intervention design may improve future interventions. However, increasing bout frequency or duration in any time-segment may be beneficial for overall PA. Elsevier 2016-10-26 /pmc/articles/PMC5107648/ /pubmed/27843758 http://dx.doi.org/10.1016/j.pmedr.2016.10.007 Text en © 2016 The Authors http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Regular Article Brooke, Hannah L Atkin, Andrew J Corder, Kirsten Brage, Soren van Sluijs, Esther MF Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days |
title | Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days |
title_full | Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days |
title_fullStr | Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days |
title_full_unstemmed | Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days |
title_short | Frequency and duration of physical activity bouts in school-aged children: A comparison within and between days |
title_sort | frequency and duration of physical activity bouts in school-aged children: a comparison within and between days |
topic | Regular Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5107648/ https://www.ncbi.nlm.nih.gov/pubmed/27843758 http://dx.doi.org/10.1016/j.pmedr.2016.10.007 |
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