Impact of cut-point methods on classification of physical activity and sedentary behaviour of toddlers.

ABSTRACT:

Background

Classification of physical activity (PA) depends on the cut-point method used to allocate PA counts from accelerometer measurements. This study investigates how three validated cut-point methods affect the time spent in various levels of PA and sedentary behaviour (SB), and how they impact toddlers estimated adherence to PA guidelines.

Methods

PA was assessed using an ActiGraph wGT3X-BT accelerometer in a cohort of 653 two-year-old children participating in the Toddler Milk Intervention study. Children wearing the ActiGraph for at least four days, with a minimum of six hours wear-time per day, were included. Time spent in SB and different activity levels were estimated according to three cut-point methods and were standardized to individual mean wear-time. We used

SUBMITTER: Ferry JM 

PROVIDER: S-EPMC12492789 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature