Heritability of objectively assessed daily physical activity and sedentary behavior.

ABSTRACT:

Background

Twin and family studies that estimated the heritability of daily physical activity have been limited by poor measurement quality and a small sample size.

Objective

We examined the heritability of daily physical activity and sedentary behavior assessed objectively by using combined heart rate and movement sensing in a large twin study.

Design

Physical activity traits were assessed in daily life for a mean (± SD) 6.7 ± 1.1 d in 1654 twins from 420 monozygotic and 352 dizygotic same-sex twin pairs aged 56.3 ± 10.4 y with body mass index (in kg/m(2)) of 26.1 ± 4.8. We estimated the average daily movement, physical activity energy expenditure, and time spent in moderate-to-vigorous intensity physical activity and sedentary behavior from heart rate and accelerati

SUBMITTER: den Hoed M 

PROVIDER: S-EPMC3798083 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature