title: The ultimate challenge. Exercise at any age.
authors: F
authors: F
authors: Baldwin
mesh_terms: D000273:Adipose Tissue; D000328:Adult; D001823:Body Composition; D002648:Child; D015444:Exercise; D005260:Female; D006801:Humans; D008019:Life Style; D008297:Male; D018482:Muscle, Skeletal; D010414:Pennsylvania; D010809:Physical Fitness