Research has shown that resistive exercise in strength training increases strength in the extensor lumbar muscles and reduces the incidence of vertebral fractures (Lirani-Galvao & Lazaretti-Castro, 2010). This demonstrates that resistive strength training prevents the loss of bone mass, maintains bone mass, improves balance and reduces the likelihood of falls (Lirani-Galvao & Lazaretti-Castro, 2010). Strength training exercise that is high impact and intense can reduce back pain and improve bone mineral density in the hips and spine for women in their early post-menopausal years that are at high risk of developing osteoporosis (Lirani-Galvao & Lazaretti-Castro, 2010). However, other types of exercise have been shown to potentially more effective than strength training for the maintenance of bone mineral density in post-menopausal women. Stengel et al. (2005) investigated the difference between strength training and power training in their effectiveness as interventions for the maintenance of bone mineral density in post-menopausal women. These researchers...

In addition, power training was found to not increase pain in post-menopausal women, even though it is characterized by explosive muscle contraction and increased stress on tendons and joints (Stengel et al., 2005).
References

Lirani-Galvao, a.P. & Lazaretti-Castro, M. (2010). Physical approach for prevention and treatment of osteoporosis. Arquivos Brasileiros de Endocrinologia & Metabologia, 54(2).

Nikander, R., Sievanen, H., Heinonen, a., Daly, R.M., Uusi-Rasi, K., Kannus, P. (2010). Targeted exercise against osteoporosis: A systematic review and meta-analysis for optimizing bone strength throughout life. BMC Medicine, 8(47).

Stengel, S.V., Kemmler, W., PIntag, R., Beeskow, C., Weineck, J., Lauber, D., Kalender, W.A., Engelke, K. (2005). Power traiing is more effective than strength training for maintaining bone mineral density…