台阶试验评估社区居住老年女性下肢肌肉力量的准确性。
Accuracy of the step test to evaluate lower limb muscle strength in community-dwelling older women.
机构信息
Physiotherapy Course, Department of Health Sciences, Rehabilitation and Functional Performance Program, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto, SP, 14049-900, Brazil.
Faculty of Physical Education and Physiotherapy, Federal University of Amazonas (UFAM), General Rodrigo Octávio Avenue, 6200, Manaus, AM, 69080-900, Brazil.
出版信息
J Bodyw Mov Ther. 2021 Jan;25:133-139. doi: 10.1016/j.jbmt.2020.10.009. Epub 2020 Oct 13.
OBJECTIVE
to investigate the accuracy of the step test (ST) to evaluate total lower limb muscle strength (LLMS) in older women.
DESIGN
observational cross-sectional study.
METHODS
119 community-dwelling older women were submitted to the ST and LLMS evaluation (isometric peak torque of eight muscle groups of the dominant lower limb). The capacity of the ST to discriminate older women with reduced LLMS was measured using ROC curve, followed by the posttest probability (PoTP) calculation.
RESULTS
a ST score of 0.24 cm per cm of participant's height presents a sensitivity of 63.3%, specificity of 77%; enhances the PoTP from 48% to 72% for positive test and decreases the PoTP from 48% to 31% for negative test.
CONCLUSION
the ST may complement the clinical screening of reduced LLMS in older women, given that it is a simple and quick low-cost test and allows the evaluation of each lower limb separately.
目的
研究台阶测试（ST）评估老年女性下肢整体肌肉力量（LLMS）的准确性。
设计
观察性横断面研究。
方法
119 名居住在社区的老年女性接受了 ST 和 LLMS 评估（优势下肢 8 个肌肉群的等长峰值扭矩）。使用 ROC 曲线测量 ST 区分下肢肌肉力量降低的老年女性的能力，然后计算 posttest probability（PoTP）。
结果
参与者身高每增加 0.24 厘米，ST 评分的灵敏度为 63.3%，特异性为 77%；阳性测试的 PoTP 从 48%提高到 72%，而阴性测试的 PoTP 从 48%降低到 31%。
结论
ST 可以补充老年女性下肢肌肉力量降低的临床筛查，因为它是一种简单、快速、低成本的测试，并且可以分别评估每条下肢。
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