title: Changes in fitness profiles during a season of track and field training and competition.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D010806:Physical Education and Training; D010809:Physical Fitness; D013178:Sports Medicine; D014142:Track and Field