A cross-cultural comparison of neuromuscular performance, functional status, and falls between Japanese and white women
A cross-cultural comparison of neuromuscular performance, functional status, and falls between Japanese and white women
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DOI：
10.1093/gerona/54.6.m288
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发表时间：
1999-06-01
影响因子：
5.1
通讯作者：
Ross, PD
中科院分区：
文献类型：
--
作者：
Davis, JW;Nevitt, MC;Ross, PD
背景。先前的研究报告称，日本女性跌倒的发生率约为白人女性的一半。发病率的差异可能是由于神经肌肉表现的差异，如肌肉力量、机动性和平衡。这一假设通过比较两个社区居住人群来验证：夏威夷骨质疏松研究中的日本女性和骨质疏松性骨折研究中的高加索女性。使用标准化程序对两组女性的神经肌肉性能进行评估。通过每隔4个月邮寄一次的调查，对跌倒情况进行了纵向监测。日本女性和白人女性在神经肌肉的表现上有很大的不同。日本女性走路的速度更快，椅子也能站立，在一系列的平衡测试中表现更好。白人女性的力量更大，尤其是在股四头肌，手脚反应时间也更快。白人女性也报告了更少的功能障碍，包括爬台阶、做繁重的家务和购买杂货的困难更少。在年龄调整分析中，白人女性摔倒的风险更大[优势比(OR) = 1.8；95%置信区间(CI) = 1.6, 2.0]。在对神经肌肉测试结果和功能障碍数量进行调整后，跌倒风险的优势比基本保持不变（OR = 1.8; 95% Cl = 1.5, 2.1）。结论：日本女性和白人女性在神经肌肉运动方面有不同的优势和局限性。然而，这些差异并不能解释日本女性摔倒风险较低的原因。
Background. Previous studies have reported that the incidence of falls among Japanese women is about half that of white women. The difference in incidence might result from differences in neuromuscular performance, such as muscle strength, mobility, and balance. This hypothesis was tested by comparing two community-dwelling populations: Japanese women in the Hawaii Osteoporosis Study, and Caucasian women in the Study of Osteoporotic Fractures.Methods. Neuromuscular performance was assessed for women in the two cohorts using standardized procedures. Falls were monitored longitudinally, using surveys mailed at 4-month intervals.Results. The Japanese and white women differed substantially in their neuromuscular performance. The Japanese women had faster walking speeds and chair stands, and performed better on a series of balance tests. The white women had greater strength, particularly at the quadriceps, and faster hand and foot reaction times. The white women also reported fewer functional disabilities, including fewer difficulties in climbing steps, doing heavy housework, and shopping for groceries. In age adjusted analyses, the risk of falls was greater for the white women [odds ratio (OR) = 1.8; 95% confidence interval (CI) = 1.6, 2.0]. After adjusting for the neuromuscular test results and the number of functional disabilities, the odds ratio for the risk of falls remained essentially the same (OR = 1.8; 95% Cl = 1.5, 2.1).Conclusions, The Japanese and white women had different advantages and limitations in neuromuscular performance. These differences, however, did not explain the lower risk of falls among Japanese women.