Conclusions and Relevance This systematic review and meta- analysis did not show a significant beneficial or detrimental association of HT with muscle mass .
Importance Hormone therapy ( HT ) has been suggested for protection against age-related muscle weakness in women .
However , the potential for HT-associated health risks necessitates a better underst and ing of the direction and magnitude of the association between HT and health outcomes , such as lean body mass ( LBM ) .
Objective To determine whether HT was associated with reduced LBM loss compared with not receiving HT  among postmenopausal women aged 50 years and older .
The influence of menopause and hormonal replacement therapy on body cell mass and body fat mass.
OBJECTIVE Our purpose was to determine the efficacy of dietary calcium augmentation in the prevention of early postmenopausal bone density loss in comparison with hormonal replacement therapy and placebo . STUDY DESIGN A three-arm parallel r and omized trial comparing the influence of placebo , dietary calcium augmentation , and estrogen-progesterone-calcium in 118 women who were within 6 years of menopause was conducted .  Dual photon absorptiometry was performed annually to measure lean and fat mass . In addition , the ratio of fat in the trunk/extremities was measured . RESULTS Body weight increased in each group . The increase was statistically significant in the hormone replacement group ( 0.8 kg/year ) . The percent of body fat increased in each group from baseline measurements , with the greatest increase in the hormonal replacement group . There was a decline in the extremity/trunk ratio in the hormonal replacement group as a result of a relatively greater increase in the trunk fat mass . There was a rapid rate of loss in lean body mass that was equal among groups . CONCLUSIONS Menopause is associated with a gain in fat mass and a loss of lean body mass , but these changes in body composition are not prevented by hormone replacement therapy
Conclusions and Relevance This systematic review and meta- analysis did not show a significant beneficial or detrimental association of HT with muscle mass .
Importance Hormone therapy ( HT ) has been suggested for protection against age-related muscle weakness in women .
However , the potential for HT-associated health risks necessitates a better underst and ing of the direction and magnitude of the association between HT and health outcomes , such as lean body mass ( LBM ) .
Objective To determine whether HT was associated with reduced LBM loss compared with not receiving HT  among postmenopausal women aged 50 years and older .