Ontology highlight
ABSTRACT: Background
Much of the population fails to meet recommended physical activity (PA) levels, but there remains considerable individual variation. By understanding drivers of different trajectories, interventions can be better targeted and more effective. One such driver may be a person's physical activity identity (PAI)-the extent to which a person perceives PA as central to who they are.Methods
Using survey information and a unique body of essays written at age 11 from the National Child Development Study (N = 10 500), essays mentioning PA were automatically identified using the machine learning technique support vector classification and PA trajectories were estimated using latent class analysis. Analyses tested the extent to which childhood PAI correlated with activity lev
SUBMITTER: Pongiglione B
PROVIDER: S-EPMC7746399 | biostudies-literature | 2020 Oct
REPOSITORIES: biostudies-literature