[Purpose] This study aimed to verify the usefulness of a 50-m round walking test developed as an assessment method for walking ability in the elderly. [Subjects] The subjects were 166 elderly requiring long-term care individuals (mean age, 80.5 years). [Methods] In order to evaluate the factors that had affected falls in the subjects in the previous year, we performed the 50-m round walking test, functional reach test, one-leg standing test, and 5-m walking test and measured grip strength and quadriceps strength. [Results] The 50-m round walking test was selected as a variable indicating fall risk based on the results of multiple logistic regression analysis. The cutoff value of the 50-m round walking test for determining fall risk was 0.66 m/sec. The area under the receiver operating characteristic curve was 0.64. The sensitivity of the cutoff value was 65.7%, the specificity was 63.6%, the positive predictive value was 55.0%, the negative predictive value was 73.3%, and the accuracy was 64.5%. [Conclusion] These results suggest that the 50-m round walking test is a potentially useful parameter for the determination of fall risk in the elderly requiring long-term care.
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机译：[目的]本研究旨在验证开发的50米圆形步行测试的实用性，该测试是对老年人步行能力的一种评估方法。 [对象]受试者为166位需要长期护理的老年人（平均年龄80.5岁）。 [方法]为了评估上一年度受试者跌倒的影响因素，我们进行了50米的步行测试，功能伸直测试，单腿站立测试和5米的步行测试，并测量了握力力量和股四头肌力量。 [结果]基于多重逻辑回归分析的结果，选择50米的步行试验作为指示跌倒风险的变量。用于确定跌倒风险的50米步行试验的临界值为0.66 m / sec。接收器工作特性曲线下方的面积为0.64。临界值的敏感性为65.7％，特异性为63.6％，阳性预测值为55.0％，阴性预测值为73.3％，准确度为64.5％。 [结论]这些结果表明，在需要长期护理的老年人中，50米的步行测试是确定跌倒风险的潜在有用参数。
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