title: Physical fitness programs for adults.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009042:Motivation; D010101:Oxygen Consumption; D010806:Physical Education and Training; D010809:Physical Fitness; D013997:Time Factors