Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
Arch Gerontol Geriatr. 2012 Sep-Oct;55(2):392-8. doi: 10.1016/j.archger.2011.11.011. Epub 2011 Dec 22.
Overall physical performance can be represented by a composite score that is derived from upper and lower extremity performance measures. We aimed to identify whether composite scores of performance measures, particularly the lower extremity performance (LEP) score, upper extremity performance (UEP) score, and an overall score, are more accurate than usual gait speed (UGS) for assessing a wide range of functional status. We conducted a cross-sectional analysis on data from 701 community-dwelling older women (mean age 74.3 years). Trained testers measured UGS and the seven tests included in the composite scores. Using self-reported questionnaires, we assessed multiphasic functional status: physical function, higher-level functional capacity, mobility limitation, activities of daily living (ADLs), and falls. We compared the areas under the receiver operating characteristic curves (AUCs) of UGS with LEP, UEP, and overall scores for each status. We found no significant differences between the AUCs of UGS and LEP score for each status. The UEP score had significantly smaller AUCs for low physical function (0.73) and mobility limitation (0.78) than UGS alone (0.81 and 0.85, respectively), and the differences were substantial. Although the overall score had significantly greater AUCs for low higher-level functional capacity (0.83) and ADLs disability (0.83) than UGS alone (0.78 and 0.80, respectively), the differences were only 3-5%. The UGS should not be regarded solely as a measure of lower extremity function; this single test may represent overall physical performance. The UGS alone, which can be measured quickly and easily, suffice for assessing a wide range of functional status in older women.
整体身体表现可以通过综合得分来表示，该得分源自上下肢表现测量结果。我们旨在确定表现测量结果的综合得分，特别是下肢表现（LEP）得分、上肢表现（UEP）得分和总体得分，是否比通常的步态速度（UGS）更能准确评估广泛的功能状态。我们对 701 名居住在社区的老年女性（平均年龄 74.3 岁）的数据进行了横断面分析。经过培训的测试人员测量了 UGS 和综合得分中包含的七项测试。我们使用自我报告的问卷评估了多相功能状态：身体功能、高级功能能力、移动受限、日常生活活动（ADL）和跌倒。我们比较了 UGS 与 LEP、UEP 和总体得分在每个状态下的接收者操作特征曲线（AUC）下面积。我们发现 UGS 与 LEP 得分在每个状态下的 AUC 之间没有显著差异。UEP 得分在身体功能较低（0.73）和移动受限（0.78）方面的 AUC 显著小于 UGS 单独（分别为 0.81 和 0.85），差异较大。尽管总体得分在高级功能能力较低（0.83）和 ADL 障碍（0.83）方面的 AUC 明显大于 UGS 单独（分别为 0.78 和 0.80），但差异仅为 3-5%。UGS 不应仅被视为下肢功能的衡量标准；该单项测试可能代表整体身体表现。UGS 本身可以快速、轻松地测量，足以评估老年女性广泛的功能状态。
