Association of BMI category with change in children's physical activity between ages 6 and 11 years: a longitudinal study.

ABSTRACT:

Background/objectives

To examine the association of body mass index (BMI) with change in children's physical activity and sedentary time between ages 6 and 11.

Participants

A total of 2132 children participated from 57 schools in Southwest England, from the B-PROACT1V study.

Methods

Mean minutes of MVPA and sedentary time per day were derived from accelerometer-based measurements at ages 6, 9 and 11. Linear multilevel models examined the association of BMI categories with MVPA and sedentary time between 6 and 11, adjusting for seasonality, wear time, gender and household education. Differences in change over time were examined using interaction terms.

Results

Average weekday MVPA decreased between ages 6 and 11 by 2.2 min/day/year (95% CI: 1.9 to 2.5), with a s

SUBMITTER: Jago R 

PROVIDER: S-EPMC6923172 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature