Mild aerobic exercise no protection from osteoporosis.
D000368:Aged; D001835:Body Weight / Q000502:physiology; D015519:Bone Density / Q000502:physiology; D015444:Exercise; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000517:prevention & control*