Body composition, aerobic capacity, and density of muscle capillaries in young and old men.
D000328:Adult; D000332:Aerobiosis; D000367:Age Factors; D000368:Aged; D001706:Biopsy; D001823:Body Composition; D001827:Body Height; D001835:Body Weight; D002196:Capillaries / Q000033:anatomy & histology*; D003720:Densitometry; D006801:Humans; D008297:Male; D009132:Muscles / Q000033:anatomy & histology / Q000098:blood supply*; D005082:Physical Exertion; D010809:Physical Fitness; D011674:Pulse; D012119:Respiration