Objectively measured physical activity and longitudinal changes in adolescent body fatness: an observational cohort study.

ABSTRACT:

Background

The data regarding prospective associations between physical activity (PA) and adiposity in youth are inconsistent.

Objective

The objective of this study was to investigate associations between baseline levels of objectively measured PA and changes in adiposity over 2.5 years from mid-to-late adolescence.

Methods

This was an observational cohort study in 728 school students (43% boys) from Cambridgeshire, United Kingdom. Fat mass index (FMI, kg m(-2) ) was estimated at baseline (mean ± standard deviation age: 15 ± 0.3 years) and follow-up (17.5 ± 0.3 years) by anthropometry and bioelectrical impedance. Habitual PA was assessed at baseline by ≥3 d combined heart rate and movement sensing. Average daily PA energy expenditure (PAEE) and the time (min d(-1) ) s

SUBMITTER: Collings PJ 

PROVIDER: S-EPMC4780592 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature