Average acceleration and intensity gradient of 9-11-year-old rural and urban Kenyan school-going children and associations with cardiorespiratory fitness and BMI: The Kenya-LINX project.

ABSTRACT:

Background

Physical activity (PA) is crucial for children's health, cardiorespiratory fitness (CRF) and weight status. However, research on the PA profiles of Kenyan children, especially between rural and urban areas, is limited.

Method

This study examined the PA profiles of 537 school-aged children (51.6% girls, 9-11-year-olds) from Nairobi City County, Kenya (urban setting), and Kitui County, Kenya (rural setting), using stratified multistage random cluster sampling. Participants wore an accelerometer (Axivity AX3) on their non-dominant wrist for 24 hours a day over seven days. Raw accelerations were extracted and averaged over a 5-s epoch (AvgAcc) to estimate PA volume. Intensity gradient (IG) was calculated as a standardised metric of PA intensity. Participants' CRF was

SUBMITTER: Kinuthia SK 

PROVIDER: S-EPMC12321071 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature