Youth activity versus youth fitness: let's redirect our efforts.
Freedson
P S
PS
Department of Exercise Science, University of Massachusetts, Amherst.
Rowland
T W
TW
D000293:Adolescent; D000367:Age Factors; D002648:Child; D005060:Europe; D005260:Female; D006801:Humans; D008019:Life Style; D008297:Male; D010806:Physical Education and Training; D005082:Physical Exertion; D010809:Physical Fitness; D012015:Reference Standards; D014481:United States