Trajectories of children's physical activity volume and intensity across the school year: the Ready, Set, Move project.

ABSTRACT:

Background

Average acceleration (AvAcc) and intensity gradient (IG) are accelerometer metrics which when combined describe the volume and intensity distribution of physical activity, sedentary behaviour, and sleep across the 24-h cycle. Little is known about trajectories of children's AvAcc and IG over time on weekdays and weekends. This study describes school year trajectories of children's weekday and weekend AvAcc and IG.

Methods

During 2023-24 249 children (8-9 years old; 51.4% girls) wore accelerometers for 24 h⋅day^-1 over 7-days at three time points (Autumn, Winter/Spring, Summer). AvAcc and IG were calculated for weekdays and weekends. K-means cluster analyses were performed on Autumn data to group participants according to their combined AvAcc and IG profi

SUBMITTER: Fairclough SJ 

PROVIDER: S-EPMC12764146 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature