Physical activity, exercise, and physical fitness: definitions and
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1424733/
WEBExercise is a subset of physical activity that is planned, structured, and repetitive and has as a final or an intermediate objective the improvement or maintenance of physical … Author: C J Caspersen, K E Powell, G M Christenson Publish Year: 1985
Author: C J Caspersen, K E Powell, G M Christenson
Publish Year: 1985
DA: 47 PA: 65 MOZ Rank: 14