DOI: 10.1101/19003442Aug 27, 2019Paper

Descriptive epidemiology of physical activity energy expenditure in UK adults. The Fenland Study.

MedRxiv : the Preprint Server for Health Sciences
Tim LindsaySøren Brage


Background: Physical activity (PA) plays a role in the prevention of a range of diseases including obesity and cardiometabolic disorders. Large population-based descriptive studies of PA, incorporating precise measurement, are needed to understand the relative burden of insufficient PA levels and to inform the tailoring of interventions. Combined heart and movement sensing enables the study of physical activity energy expenditure (PAEE) and intensity distribution. We aimed to describe the sociodemographic correlates of PAEE and moderate-to-vigorous physical activity (MVPA) in UK adults. Methods: The Fenland study is a population-based cohort study of 12,435 adults aged 29 to 64 years-old in Cambridgeshire, UK. Following individual calibration (treadmill), participants wore a combined heart rate and movement sensor continuously for 6 days in free-living, from which we derived PAEE (kJ{middle dot}day-1{middle dot}kg-1) and time in MVPA (>3 & >4 METs) in bouts greater than 1 minute and 10 minutes. Socio-demographic information was self-reported. Stratum-specific summary statistics and multivariable analyses were performed. Results: Women accumulated a mean(sd) 50(20) kJ{middle dot}day-1{middle dot}kg-1 of PAEE, and 83(67) and 33(3...Continue Reading

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