Efficacy and Safety of the Physical Activity Program in Women With Post-menopausal Osteoporosis

The study will be single blinded since professionals who will evaluate patients will not know to which exercise group patients have been assigned. The investigators hypothesize that effectiveness and safety of the exercise program are equal when administered as gym trainer or individual home trainer. However, the investigators expect differences in adherence among the two groups which may cause different impact on the outcome measures. Given the large amount of evidence on the efficacy of Physical Activity in women with Osteoporosis, the investigators considered it ethically unacceptable to advise a control group inactivity. On the other hand, it seemed particularly relevant for the purpose of addressing the advice to the improvement of the active lifestyle, to evaluate the impact of the ACTLIFE exercise program when administered as gym trainer or individual home trainer