Methods: Fifty elderly aged 65 or older, with a diagnosis of osteoporosis, were randomized into 3 groups: Strength Group (n = 17) performed balance training with muscle strengthening; Stretching Group (n = 17) performed balance training with stretching; and Control Group (n =16) did not do activity. The groups trained for 8 weeks, with sessions of about 60 minutes, twice a week. Postural control was evaluated by Modified Clinical Test of Sensory Interaction for Balance (CTSIBm) and Limits of Stability test (LOS) in Balance Master force plate, the functional balance by Berg Balance Scale (BBS), muscle strength by dynamometry, the shortening of the hamstrings by goniometry and posture by PAS/SAPO (Postural Assessment Software).