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Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles
BACKGROUND: It has been advocated that older adults should concomitantly spend less time in sedentary behaviour (SB), and engage in sufficient physical activity (PA), to reduce their risk of cardio-metabolic diseases. However, it is not clear what intensity of PA must be done to offset SB engagement...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6808553/ https://www.ncbi.nlm.nih.gov/pubmed/31644560 http://dx.doi.org/10.1371/journal.pone.0224223 |
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author | Ryan, Declan J. Wullems, Jorgen Antonin Stebbings, Georgina Kate Morse, Christopher Ian Stewart, Claire Elizabeth Onambele-Pearson, Gladys Leopoldine |
author_facet | Ryan, Declan J. Wullems, Jorgen Antonin Stebbings, Georgina Kate Morse, Christopher Ian Stewart, Claire Elizabeth Onambele-Pearson, Gladys Leopoldine |
author_sort | Ryan, Declan J. |
collection | PubMed |
description | BACKGROUND: It has been advocated that older adults should concomitantly spend less time in sedentary behaviour (SB), and engage in sufficient physical activity (PA), to reduce their risk of cardio-metabolic diseases. However, it is not clear what intensity of PA must be done to offset SB engagement. AIM: Model how cardio-metabolic profiles could change if older adults replaced an hour per day (hr·day(-1)) of a physical behaviour intensity with 1 hr·day(-1) of another physical behaviour of a different intensity. METHODS: Older adults (n = 93, 60–89 years old, 55% female) wore a thigh-mounted triaxial accelerometer for seven consecutive free-living days to estimate mean daily hourly engagement in SB, Standing, Light Intensity PA (LIPA), sporadic moderate to vigorous physical activity (sMVPA, bouts <10 continuous minutes), and 10-minute MVPA ((10)MVPA, bouts ≥10 continuous minutes. Fasting whole blood concentration of plasma glucose, triglyceride, total cholesterol, and glycated haemoglobin (%), along with serum concentration of lipoprotein lipase (LPL), interleukin-6 (IL-6), and procollagen III N-terminal propeptide (PIIINP) were measured. RESULTS: Isotemporal Substitution, with covariate adjustment, suggested that: total cholesterol concentration could theoretically decrease when 1 hr·day(-1) of SB is replaced with Standing, when 1 hr.day(-1) of LIPA is replaced with Standing, and when 1 hr·day(-1) of sMVPA is replaced with Standing. Triglyceride concentration theoretically decreased when 1 hr·day(-1) of SB, Standing, LIPA, or sMVPA is replaced with (10)MVPA. Triglyceride concentration theoretically increases when 1 hr·day(-1) of (10)MVPA is replaced with SB, Standing, or LIPA. No associations with time reallocation appears to exist for LPL, HbA1c, IL-6, and PIIINP. CONCLUSION: The type of physical behaviour being replaced could be crucial for total cholesterol maintenance. Engagement in (10)MVPA could be necessary to improve triglyceride concentration. |
format | Online Article Text |
id | pubmed-6808553 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-68085532019-11-02 Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles Ryan, Declan J. Wullems, Jorgen Antonin Stebbings, Georgina Kate Morse, Christopher Ian Stewart, Claire Elizabeth Onambele-Pearson, Gladys Leopoldine PLoS One Research Article BACKGROUND: It has been advocated that older adults should concomitantly spend less time in sedentary behaviour (SB), and engage in sufficient physical activity (PA), to reduce their risk of cardio-metabolic diseases. However, it is not clear what intensity of PA must be done to offset SB engagement. AIM: Model how cardio-metabolic profiles could change if older adults replaced an hour per day (hr·day(-1)) of a physical behaviour intensity with 1 hr·day(-1) of another physical behaviour of a different intensity. METHODS: Older adults (n = 93, 60–89 years old, 55% female) wore a thigh-mounted triaxial accelerometer for seven consecutive free-living days to estimate mean daily hourly engagement in SB, Standing, Light Intensity PA (LIPA), sporadic moderate to vigorous physical activity (sMVPA, bouts <10 continuous minutes), and 10-minute MVPA ((10)MVPA, bouts ≥10 continuous minutes. Fasting whole blood concentration of plasma glucose, triglyceride, total cholesterol, and glycated haemoglobin (%), along with serum concentration of lipoprotein lipase (LPL), interleukin-6 (IL-6), and procollagen III N-terminal propeptide (PIIINP) were measured. RESULTS: Isotemporal Substitution, with covariate adjustment, suggested that: total cholesterol concentration could theoretically decrease when 1 hr·day(-1) of SB is replaced with Standing, when 1 hr.day(-1) of LIPA is replaced with Standing, and when 1 hr·day(-1) of sMVPA is replaced with Standing. Triglyceride concentration theoretically decreased when 1 hr·day(-1) of SB, Standing, LIPA, or sMVPA is replaced with (10)MVPA. Triglyceride concentration theoretically increases when 1 hr·day(-1) of (10)MVPA is replaced with SB, Standing, or LIPA. No associations with time reallocation appears to exist for LPL, HbA1c, IL-6, and PIIINP. CONCLUSION: The type of physical behaviour being replaced could be crucial for total cholesterol maintenance. Engagement in (10)MVPA could be necessary to improve triglyceride concentration. Public Library of Science 2019-10-23 /pmc/articles/PMC6808553/ /pubmed/31644560 http://dx.doi.org/10.1371/journal.pone.0224223 Text en © 2019 Ryan et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Ryan, Declan J. Wullems, Jorgen Antonin Stebbings, Georgina Kate Morse, Christopher Ian Stewart, Claire Elizabeth Onambele-Pearson, Gladys Leopoldine Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles |
title | Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles |
title_full | Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles |
title_fullStr | Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles |
title_full_unstemmed | Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles |
title_short | Using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles |
title_sort | using isotemporal substitution to predict the effects of changing physical behaviour on older adults’ cardio-metabolic profiles |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6808553/ https://www.ncbi.nlm.nih.gov/pubmed/31644560 http://dx.doi.org/10.1371/journal.pone.0224223 |
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