Journal: Journal of Sport and Health Science
Article Title: Associations of accelerometer-measured light-intensity physical activity with mortality and incidence of cardiovascular diseases and cancers: A prospective cohort study
doi: 10.1016/j.jshs.2025.101099
Figure Lengend Snippet: Dose‒response associations of light-intensity physical activity with mortality and disease incidence. Models were adjusted for age, sex, ethnic/racial group, educational attainment, employment status, Townsend Deprivation Index, alcohol intake, smoking status, sleep duration, discretionary screen time, intake of fruits and vegetables, self-reported health, accelerometer wear time, season of accelerometer wear, and moderate-to-vigorous intensity physical activity. To reduce the influence of extreme values, the range was capped between the 2.5th and 97.5th percentile. The reference was set at the 5th percentile of light-intensity physical activity (i.e., 1114 min/week ≈ 2.65 h/day). 95%CI = 95% confidence interval; CVD = cardiovascular disease.
Article Snippet: Participants wore an Axivity AX3 wrist-worn triaxial accelerometer (Axivity Ltd., Newcastle upon Tyne, UK) on the dominant wrist for 7 consecutive days, and it recorded continuous acceleration signals calibrated to 100 Hz and a dynamic range of ±8 g . The intensity of PA was identified using a validated, published machine learning-based Random Forest activity method, which includes categories for running, walking, and small utilitarian movements.
Techniques: Activity Assay