力量训练可在不进行激素替代疗法的情况下维持绝经后女性的骨密度。
Strength training preserves the bone mineral density of postmenopausal women without hormone replacement therapy.
作者信息
Bocalini Danilo Sales, Serra Andrey Jorge, dos Santos Leonardo, Murad Neif, Levy Rozeli Ferreira
机构信息
Federal University of São Paulo and Heart Institute, Medical School of São Paulo University, Rue General Chagas Santos 392, CEP: 04146-050. São Paulo, Brazil.
出版信息
J Aging Health. 2009 Jun;21(3):519-27. doi: 10.1177/0898264309332839. Epub 2009 Feb 27.
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.
目的
本研究旨在评估力量训练（ST）对未接受激素替代疗法的绝经后女性骨密度（BMD）的影响。
方法
将受试者随机分为未训练（UN）组或训练（TR）组。TR组每周进行三次力量训练，共24周，并评估身体成分、肌肉力量以及腰椎和股骨颈的骨密度。
结果
仅TR组在24周后体重、体重指数和脂肪百分比降低（p < .05）。力量训练还分别使46%的上肢和39%的下肢的一次重复最大负荷测试得到改善。UN组腰椎和股骨颈的骨质流失百分比高于TR组（p < .05）。
讨论
结果表明，24周的力量训练改善了绝经后女性的身体成分参数，增加了肌肉力量，并维持了骨密度。
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