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Journal of Aging and Health
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Strength Training Preserves the Bone Mineral Density of Postmenopausal Women Without Hormone Replacement Therapy

Danilo Sales Bocalini, MS

Federal University of São Paulo and Heart Institute, Medical School of São Paulo University, Brazil, bocalini{at}fcr.epm.br

Andrey Jorge Serra, PhD

Federal University of São Paulo and Heart Institute, Medical School of São Paulo University, Brazil

Leonardo dos Santos, MD, PhD

Federal University of São Paulo and Heart Institute, Medical School of São Paulo University, Brazil

Neif Murad, MD, PhD

ABC Medical School, São Paulo, Brazil

Rozeli Ferreira Levy, PhD

Federal University of Paraiba, João Pessoa, Brazil

Objective: The study was designed to evaluate the effects of strength training (ST) on the bone mineral density (BMD) of postmenopausal women without hormone replacement therapy. Method: Subjects were randomized into untrained (UN) or trained (TR) groups. The TR group exercised three ST sessions per week for 24 weeks, and body composition, muscular strength, and BMD of the lumbar spine and femur neck were evaluated. Results: Body weight, mass index, and fat percentage were lower after 24 weeks only in the TR group (p < .05). SR also improved the one repetition maximum test in 46% and 39% of upper and lower limbs, respectively. The percentage of demineralization was higher in the UN group than in the TR group at the lumbar spine and femoral neck (p < .05). Discussion: Results indicated that 24 weeks of ST improved body composition parameters, increased muscular strength, and preserved BMD in postmenopausal women.

Key Words: aging • physical activity • resistance exercise • bone health

This version was published on June 1, 2009

Journal of Aging and Health, Vol. 21, No. 3, 519-527 (2009)
DOI: 10.1177/0898264309332839
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