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Cited by 683

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Sitting Time, Physical Activity, and Risk of Mortality in Adults

Open access
Stamatakis, Emmanuel, Gale, Joanne, Bauman, Adrian, Ekelund, Ulf, Hamer, Mark, Ding, Ding·2019·Journal of the American College of Cardiology

Abstract

BACKGROUND: It is unclear what level of moderate to vigorous intensity physical activity (MVPA) offsets the health risks of sitting. OBJECTIVES: The purpose of this study was to examine the joint and stratified associations of sitting and MVPA with all-cause and cardiovascular disease (CVD) mortality, and to estimate the theoretical effect of replacing sitting time with physical activity, standing, and sleep. METHODS: A longitudinal analysis of the 45 and Up Study calculated the multivariable-adjusted hazard ratios (HRs) of sitting for each sitting-MVPA combination group and within MVPA strata. Isotemporal substitution modeling estimated the per-hour HR effects of replacing sitting. RESULTS: A total of 8,689 deaths (1,644 due to CVD) occurred among 149,077 participants over an 8.9-year (median) follow-up. There was a statistically significant interaction between sitting and MVPA only for all-cause mortality. Sitting time was associated with both mortality outcomes in a nearly dose-response manner in the least active groups reporting <150 MVPA min/week. For example, among those reporting no MVPA, the all-cause mortality HR comparing the most sedentary (>8 h/day) to the least sedentary (<4 h/day) groups was 1.52 (95% confidence interval: 1.13 to 2.03). There was inconsistent and weak evidence for elevated CVD and all-cause mortality risks with more sitting among those meeting the lower (150 to 299 MVPA min/week) or upper (≥300 MVPA min/week) limits of the MVPA recommendation. Replacing sitting with walking and MVPA showed stronger associations among high sitters (>6 sitting h/day) where, for example, the per-hour CVD mortality HR for sitting replaced with vigorous activity was 0.36 (95% confidence interval: 0.17 to 0.74). CONCLUSIONS: Sitting is associated with all-cause and CVD mortality risk among the least physically active adults; moderate-to-vigorous physical activity doses equivalent to meeting the current recommendations attenuate or effectively eliminate such associations.

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Metadata

Authors
Stamatakis, E., Gale, J., Bauman, A., Ekelund, U., Hamer, M., & Ding, D.
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
2019-04
Volume
73
Issue
16
Pages
2062-2072
ISSN
0735-1097 (ISSN-L)
OpenAlex
W2936416719
Cited by
683
References
8
FWCI
42.15
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Sitting Time, Physical Activity, and Risk of Mortality in Adults. https://app.cochat.ai/papers/10.1016/j.jacc.2019.02.031
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Stamatakis, E., Gale, J., Bauman, A., Ekelund, U., Hamer, M., & Ding, D. (2019). Sitting Time, Physical Activity, and Risk of Mortality in Adults. Journal of the American College of Cardiology. https://doi.org/10.1016/j.jacc.2019.02.031

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