Measurement Properties of a Virtually Administered 30-Second Chair Stand Test in People With Stroke.

IF 2.6 3区医学 Q2 CLINICAL NEUROLOGY

Journal of Neurologic Physical Therapy Pub Date : 2025-05-08 DOI:10.1097/NPT.0000000000000520

Kenneth S Noguchi, Allison Liang, Elise Wiley, Sarah Park, Brodie M Sakakibara, Ada Tang

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引用次数: 0

Abstract

Background and purpose: Muscle strength is important for functional independence after a stroke. Given the rise in telerehabilitation, there is a need to study the measurement properties of virtually administered performance-based measures. The purpose of this study was to assess the validity and responsiveness of a virtually administered 30-second chair stand test (30sCST-Virtual) in people with stroke.

Methods: Thirty-two hypotheses were generated about construct validity and responsiveness using several outcome measures (Stroke Impact Scale, strength domain [SIS-S], Timed Up and Go [TUG], Activities-Specific Balance Confidence Scale, Fugl-Meyer Lower Extremity Assessment, Functional Reach Test, and SIS cognition domain). Hypotheses were tested using Spearman's correlations. Scores on the 30sCST-Virtual were compared between higher- and lower-functioning participants using the modified Rankin Scale (mRS) and NIH Stroke Scale (NIHSS) with Wilcoxon rank-sum tests to assess known-groups validity.

Results: Sixty-seven participants (n = 19 female, 9.3 months post-stroke) with mild to moderate stroke were included. The 30sCST-Virtual demonstrated acceptable construct validity and responsiveness, as 14 (82%) and 12 (80%) hypotheses were confirmed, respectively. Its baseline scores were most highly correlated with the TUG (r = - 0.64) and change scores with the SIS-S (r = 0.35). The 30sCST-Virtual scores were also lower in those with lower function using the mRS (median difference [MD] = 4.0 repetitions, P < 0.001) and NIHSS (MD = 3.5 repetitions, P = 0.003), meeting our hypotheses for known-groups validity.

Discussion and conclusions: The 30sCST-Virtual demonstrated acceptable construct validity and responsiveness, as well as adequate known-groups validity. It was also moderately correlated with other measures of physical function, indicating that the 30sCST-Virtual may measure the construct of functional strength.

Video abstract available: For more insights from the authors (see the Video, Supplemental Digital Content available at http://links.lww.com/JNPT/A526).

查看原文本刊更多论文

脑卒中患者虚拟30秒椅子站立测试的测量特性。

背景和目的：肌肉力量对中风后的功能独立性很重要。鉴于远程康复的增加，有必要研究虚拟管理的基于绩效的措施的测量特性。本研究的目的是评估在中风患者中进行的虚拟30秒椅子站立测试（30sCST-Virtual）的有效性和反应性。方法：采用几种结果测量方法（卒中冲击量表、力量域[SIS- s]、Timed Up and Go [TUG]、活动特异性平衡置信度量表、Fugl-Meyer下肢评估、功能到达测试和SIS认知域），对结构效度和反应性产生32个假设。使用斯皮尔曼相关性来检验假设。采用改进的Rankin量表（mRS）和NIH卒中量表（NIHSS）比较高功能和低功能参与者的30sCST-Virtual得分，并采用Wilcoxon秩和检验评估已知组效度。结果：67名轻至中度卒中患者（n = 19名女性，卒中后9.3个月）被纳入研究。30sCST-Virtual显示出可接受的结构效度和反应性，分别有14个（82%）和12个（80%）假设被证实。其基线评分与TUG （r = - 0.64）、变化评分与SIS-S （r = 0.35）相关性最高。使用mRS（中位差[MD] = 4.0次重复，P < 0.001）和NIHSS （MD = 3.5次重复，P = 0.003）功能较低的患者的30sCST-Virtual分数也较低，符合我们对已知组效度的假设。讨论和结论：30sCST-Virtual显示出可接受的构念效度和反应性，以及足够的已知组效度。它也与身体功能的其他测量适度相关，表明30sCST-Virtual可能测量功能强度的构建。视频摘要：更多作者的见解（见视频，补充数字内容可在http://links.lww.com/JNPT/A526）。

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来源期刊

Journal of Neurologic Physical Therapy CLINICAL NEUROLOGY-REHABILITATION

CiteScore

5.70

自引率

2.60%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Neurologic Physical Therapy (JNPT) is an indexed resource for dissemination of research-based evidence related to neurologic physical therapy intervention. High standards of quality are maintained through a rigorous, double-blinded, peer-review process and adherence to standards recommended by the International Committee of Medical Journal Editors. With an international editorial board made up of preeminent researchers and clinicians, JNPT publishes articles of global relevance for examination, evaluation, prognosis, intervention, and outcomes for individuals with movement deficits due to neurologic conditions. Through systematic reviews, research articles, case studies, and clinical perspectives, JNPT promotes the integration of evidence into theory, education, research, and practice of neurologic physical therapy, spanning the continuum from pathophysiology to societal participation.