Moderate and Vigorous Physical Activity Intensity Cut-Points for Hip-, Wrist-, Thigh-, and Lower Back Worn Accelerometer in Very Old Adults.

ABSTRACT: Physical activity (PA) reduces the risk of negative mental and physical health outcomes in older adults. Traditionally, PA intensity is classified using METs, with 1 MET equal to 3.5 mL O₂·min^-1·kg^-1. However, this may underestimate moderate and vigorous intensity due to age-related changes in resting metabolic rate (RMR) and VO₂max. VO₂reserve accounts for these changes. While receiver operating characteristics (ROC) analysis is commonly used to develop PA, intensity cut-points, machine learning (ML) offers a potential alternative. This study aimed to develop ROC cut-points and ML models to classify PA intensity in older adults. Sixty-seven older adults performed activities of daily living (ADL) and two six-minute walking tests (6-MWT

SUBMITTER: Skjodt M 

PROVIDER: S-EPMC11698702 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature