Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in context

Summary: Background: In Chinese adults, there is a considerable burden of sedentary behaviour. This study aimed to estimate the implications of reallocating sedentary leisure-time to non-sedentary behaviours for incident cardiometabolic diseases. Methods: A prospective cohort study of 462,370 Chine...

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Main Authors: Paul J. Collings, Mengyao Wang, Harrison Hin Sheung Ho, Shiu Lun Au Yeung, Parco M. Siu, Benjamin J. Cowling, Stephen J. Sharp, Søren Brage, Nicholas J. Wareham, Huaidong Du, Derrick A. Bennett, Youngwon Kim
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Language:English
Published: Elsevier 2025-04-01
Series:The Lancet Regional Health. Western Pacific
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666606525000616
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author Paul J. Collings
Mengyao Wang
Harrison Hin Sheung Ho
Shiu Lun Au Yeung
Parco M. Siu
Benjamin J. Cowling
Stephen J. Sharp
Søren Brage
Nicholas J. Wareham
Huaidong Du
Derrick A. Bennett
Youngwon Kim
author_facet Paul J. Collings
Mengyao Wang
Harrison Hin Sheung Ho
Shiu Lun Au Yeung
Parco M. Siu
Benjamin J. Cowling
Stephen J. Sharp
Søren Brage
Nicholas J. Wareham
Huaidong Du
Derrick A. Bennett
Youngwon Kim
author_sort Paul J. Collings
collection DOAJ
description Summary: Background: In Chinese adults, there is a considerable burden of sedentary behaviour. This study aimed to estimate the implications of reallocating sedentary leisure-time to non-sedentary behaviours for incident cardiometabolic diseases. Methods: A prospective cohort study of 462,370 Chinese adults (mean age 51 years; 59% female) who were free from diabetes and cardiovascular diseases at baseline. Isotemporal substitution Cox regression models were used to estimate the associations of reallocating self-reported sedentary leisure-time to the same amount of sleep, housework, Taichi, or conventional exercise (e.g., walking, jogging, ball games, swimming) with the risk of incident diabetes, stroke, and myocardial infarction (MI). The results are reported as adjusted hazard ratios and 95% confidence intervals per 30 min/day time exchanges. Potential impact fractions were calculated to estimate the proportional reductions in incident disease cases associated with time substitutions, assuming causality. Findings: During >5.25 million person-years of follow-up, 19,738 incident diabetes, 51,460 stroke, and 6767 MI cases were accrued. Lower disease risks were found for replacement of sedentary leisure-time by sleep (diabetes: 0.97 [0.95–0.99], stroke: 0.98 [0.97–0.99], MI: 0.97 [0.94–0.99]; in participants who slept <7 h/day), housework (diabetes: 0.97 [0.97–0.98], stroke: 0.99 [0.98–0.99], MI: 0.97 [0.95–0.98]), Taichi (diabetes: 0.97 [0.95–0.99], stroke: 0.98 [0.97–0.99], MI: 0.95 [0.92–0.98]), or conventional exercise (diabetes: 0.97 [0.95–0.99], stroke: 0.97 [0.95–0.98], MI: 0.92 [0.88–0.96]). Potential impact fractions ranged from an estimated 3.5% (95% confidence interval: 3.1–3.9%) fewer cases of incident stroke when replacing sedentary leisure-time with housework, to an estimated 9.6% (5.9–13.3%) fewer cases of incident MI when reallocating sedentary leisure-time to conventional exercise. Interpretation: Replacing sedentary leisure-time with behaviours such as housework, Taichi, sleep (in short sleepers) and conventional exercise is associated with lower risks of common cardiometabolic diseases in Chinese adults. Prevention strategies should be developed to promote movement behaviours and optimal levels of sleep at the expense of sedentary leisure-time. Funding: This analysis was supported by a Health and Medical Research Fund (HMRF) Research Fellowship (grant no: 06200087).
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spelling doaj-art-a77bb5821fb243beb05aefd359b5dcaf2025-08-20T02:41:30ZengElsevierThe Lancet Regional Health. Western Pacific2666-60652025-04-015710152410.1016/j.lanwpc.2025.101524Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in contextPaul J. Collings0Mengyao Wang1Harrison Hin Sheung Ho2Shiu Lun Au Yeung3Parco M. Siu4Benjamin J. Cowling5Stephen J. Sharp6Søren Brage7Nicholas J. Wareham8Huaidong Du9Derrick A. Bennett10Youngwon Kim11School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region of ChinaSchool of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region of ChinaSchool of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region of ChinaSchool of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region of ChinaSchool of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region of ChinaSchool of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region of ChinaMRC Epidemiology Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UKMRC Epidemiology Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UKMRC Epidemiology Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UKNuffield Department of Population Health (NDPH), University of Oxford, Oxford, UKNuffield Department of Population Health (NDPH), University of Oxford, Oxford, UKSchool of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong Special Administrative Region of China; Corresponding author. Rm 301D, Jockey Club Building for Interdisciplinary Research, 5 Sassoon Road, Pokfulam, Hong Kong Special Administrative Region of China.Summary: Background: In Chinese adults, there is a considerable burden of sedentary behaviour. This study aimed to estimate the implications of reallocating sedentary leisure-time to non-sedentary behaviours for incident cardiometabolic diseases. Methods: A prospective cohort study of 462,370 Chinese adults (mean age 51 years; 59% female) who were free from diabetes and cardiovascular diseases at baseline. Isotemporal substitution Cox regression models were used to estimate the associations of reallocating self-reported sedentary leisure-time to the same amount of sleep, housework, Taichi, or conventional exercise (e.g., walking, jogging, ball games, swimming) with the risk of incident diabetes, stroke, and myocardial infarction (MI). The results are reported as adjusted hazard ratios and 95% confidence intervals per 30 min/day time exchanges. Potential impact fractions were calculated to estimate the proportional reductions in incident disease cases associated with time substitutions, assuming causality. Findings: During >5.25 million person-years of follow-up, 19,738 incident diabetes, 51,460 stroke, and 6767 MI cases were accrued. Lower disease risks were found for replacement of sedentary leisure-time by sleep (diabetes: 0.97 [0.95–0.99], stroke: 0.98 [0.97–0.99], MI: 0.97 [0.94–0.99]; in participants who slept <7 h/day), housework (diabetes: 0.97 [0.97–0.98], stroke: 0.99 [0.98–0.99], MI: 0.97 [0.95–0.98]), Taichi (diabetes: 0.97 [0.95–0.99], stroke: 0.98 [0.97–0.99], MI: 0.95 [0.92–0.98]), or conventional exercise (diabetes: 0.97 [0.95–0.99], stroke: 0.97 [0.95–0.98], MI: 0.92 [0.88–0.96]). Potential impact fractions ranged from an estimated 3.5% (95% confidence interval: 3.1–3.9%) fewer cases of incident stroke when replacing sedentary leisure-time with housework, to an estimated 9.6% (5.9–13.3%) fewer cases of incident MI when reallocating sedentary leisure-time to conventional exercise. Interpretation: Replacing sedentary leisure-time with behaviours such as housework, Taichi, sleep (in short sleepers) and conventional exercise is associated with lower risks of common cardiometabolic diseases in Chinese adults. Prevention strategies should be developed to promote movement behaviours and optimal levels of sleep at the expense of sedentary leisure-time. Funding: This analysis was supported by a Health and Medical Research Fund (HMRF) Research Fellowship (grant no: 06200087).http://www.sciencedirect.com/science/article/pii/S2666606525000616Sedentary behaviourSleepPhysical activityIsotemporal substitutionCardiovascular diseasesProspective study
spellingShingle Paul J. Collings
Mengyao Wang
Harrison Hin Sheung Ho
Shiu Lun Au Yeung
Parco M. Siu
Benjamin J. Cowling
Stephen J. Sharp
Søren Brage
Nicholas J. Wareham
Huaidong Du
Derrick A. Bennett
Youngwon Kim
Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in context
The Lancet Regional Health. Western Pacific
Sedentary behaviour
Sleep
Physical activity
Isotemporal substitution
Cardiovascular diseases
Prospective study
title Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in context
title_full Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in context
title_fullStr Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in context
title_full_unstemmed Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in context
title_short Associations of reallocating sedentary leisure-time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0.5 million Chinese adultsResearch in context
title_sort associations of reallocating sedentary leisure time to alternative discretionary movement behaviours with incident cardiometabolic diseases in 0 5 million chinese adultsresearch in context
topic Sedentary behaviour
Sleep
Physical activity
Isotemporal substitution
Cardiovascular diseases
Prospective study
url http://www.sciencedirect.com/science/article/pii/S2666606525000616
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