Physical Fitness Research Center of São Caetano do Sul-CELAFISCS, São Paulo, Brazil; Division of Endocrinology, Federal University of São Paulo-UNIFESP, São Paulo, Brazil.
Division of Endocrinology, Federal University of São Paulo-UNIFESP, São Paulo, Brazil.
J Clin Densitom. 2010 Jan-Mar;13(1):96-101. doi: 10.1016/j.jocd.2009.12.001.
The present study evaluated 117 physically active postmenopausal women (67.8+/-7.0yr) who performed neuromotor physical tests (strength, balance, and mobility). Body composition (lean mass [g], fat mass [g], and % fat) and bone mineral density (BMD) of lumbar spine (L1-L4), femoral neck, and total body were measured by dual-energy X-ray absorptiometry. Following the World Health Organization criteria, osteoporosis was found in at least 1 analyzed site in 33 volunteers (28.2%): 30 (25.6%) in lumbar spine and 9 (7.7%) in femoral neck. Body weight was strongly and positively related to BMD in all sites, but the most important component of body composition was lean mass, also significantly related to all BMD sites, whereas fat mass was weakly related to the femoral neck BMD. Percent fat did not correlate with any BMD site. Of all the physical tests, the handgrip strength was most importantly related to lumbar spine, femoral neck, and total body (r=0.49, p<0.001; r=0.56, p<0.001; and r=0.52, p<0.001, respectively). The static body balance presented a weak but significant positive correlation only with lumbar spine. Our results suggest that strategies aiming to improve muscle strength and lean mass must contribute to the bone health of physically active postmenopausal women.
本研究评估了 117 名绝经后活跃女性（67.8±7.0 岁），她们进行了神经运动物理测试（力量、平衡和移动能力）。通过双能 X 射线吸收法测量了身体成分（瘦体重[g]、脂肪量[g]和%脂肪）和腰椎（L1-L4）、股骨颈和全身的骨矿物质密度（BMD）。根据世界卫生组织的标准，至少在 33 名志愿者的 1 个分析部位发现了骨质疏松症（28.2%）：30 名（25.6%）在腰椎，9 名（7.7%）在股骨颈。体重与所有部位的 BMD 呈强烈正相关，但身体成分的最重要组成部分是瘦体重，也与所有 BMD 部位显著相关，而脂肪量与股骨颈 BMD 相关性较弱。脂肪百分比与任何 BMD 部位均无关。在所有的物理测试中，握力与腰椎、股骨颈和全身的相关性最为密切（r=0.49，p<0.001；r=0.56，p<0.001；r=0.52，p<0.001）。静态身体平衡仅与腰椎呈弱但显著的正相关。我们的研究结果表明，旨在提高肌肉力量和瘦体重的策略必须有助于绝经后活跃女性的骨骼健康。
