Association of physical activity intensity and bout length with mortality: An observational study of 79,503 UK Biobank participants.

ABSTRACT:

Background

Spending more time active (and less sedentary) is associated with health benefits such as improved cardiovascular health and lower risk of all-cause mortality. It is unclear whether these associations differ depending on whether time spent sedentary or in moderate-vigorous physical activity (MVPA) is accumulated in long or short bouts. In this study, we used a novel method that accounts for substitution (i.e., more time in MVPA means less time sleeping, in light activity or sedentary) to examine whether length of sedentary and MVPA bouts associates with all-cause mortality.

Methods and findings

We used data on 79,503 adult participants from the population-based UK Biobank cohort, which recruited participants between 2006 and 2010 (mean age at accelerometer wear 62

SUBMITTER: Millard LAC 

PROVIDER: S-EPMC8480840 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature