Reliability and Concurrent Validity of Four Square Step Test Scores in Subjects With Chronic Stroke: A Pilot Study
Reliability and Concurrent Validity of Four Square Step Test Scores in Subjects With Chronic Stroke: A Pilot Study
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DOI：
10.1016/j.apmr.2013.01.027
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发表时间：
2013-07-01
影响因子：
4.3
通讯作者：
Ng, Shamay S.
中科院分区：
文献类型：
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作者：
Goh, Esther Y.;Chua, Salan Y.;Ng, Shamay S.
目标： (1) 确定慢性中风患者四方步测试 (FSST) 时间的评估者内和评估者间可靠性； (2) FSST 时间与站立平衡和功能活动测量的同时有效性； (3) FSST 截止分数，用于区分慢性中风患者与健康对照成年人动态平衡表现的差异。设计：横断面研究。地点：大学康复中心。参与者：受试者的方便样本 (N=30)，包括社区居住的慢性中风患者 (n=15) 和健康对照成人 (n=15)。干预措施：不适用。主要结果指标：FSST 评分；使用 Berg 平衡量表 (BBS) 分数测量平衡和功能活动能力； Timed Up & Go (TUG) 测试成绩；结果：FSST 时间显示出良好的评估者内可靠性，组内相关系数范围为 0.82 至 0.83，评估者间可靠性 >.99。 11 秒的 FSST 截止分数能够区分 50 岁以上的健康成年人和中风患者（敏感性，73.3%；特异性，93.3%）。 FSST 时间与向后方向控制的 LOS 分数相关（r=.64；P=.01）。 FSST 接近与 TUG 评分 (r=.59; P=.02) 和向前方向端点偏移的 LOS 评分 (r=.58; P=.02) 显着相关。然而，与 BBS 评分没有相关性。结论：FSST 是一种易于实施的临床测试，在慢性卒中患者评估动态站立平衡方面具有良好的评估者内和评估者间可靠性。 11 秒的 FSST 时间能够区分慢性中风患者和 50 岁以上的健康成年人。 FSST 时间与站立平衡和功能活动测量的相关性需要更大样本量的进一步研究。 (C) 2013 年美国康复医学会
Objectives: To establish (1) the intrarater and interrater reliability of Four Square Step Test (FSST) times in persons with chronic stroke; (2) the concurrent validity of FSST times with standing balance and functional mobility measures; and (3) the FSST cutoff score for distinguishing the differences in dynamic balance performance of persons with chronic stroke from healthy control adults.Design: Cross-sectional study.Setting: University-based rehabilitation center.Participants: Convenience sample of subjects (N=30) consisting of community-dwelling persons with chronic stroke (n=15) and healthy control adults (n=15).Interventions: Not applicable.Main Outcome Measures: FSST scores; balance and functional mobility measured using Berg Balance Scale (BBS) scores; Timed Up & Go (TUG) test scores; and limits of stability (LOS) measured by dynamic posturography.Results: FSST times showed good intrarater reliability, with intraclass correlation coefficients ranging from .82 to .83 and an interrater reliability >.99. An FSST cutoff score of 11 seconds was able to discriminate between healthy adults older than 50 years and persons with stroke (sensitivity, 73.3%; specificity, 93.3%). FSST times were correlated with LOS scores for directional control in the backward direction (r=.64; P=.01). FSST was approaching a significant correlation with TUG scores (r=.59; P=.02) and LOS scores for endpoint excursion in the forward direction (r=.58; P=.02). However, there was no correlation with BBS scores.Conclusion: FSST is an easy-to-administer clinical test with good intrarater and interrater reliability in persons with chronic stroke to assess dynamic standing balance. FSST times of 11 seconds are able to differentiate between persons with chronic stroke and healthy adults older than 50 years. The correlation of FSST times with standing balance and functional mobility measures requires further research with a larger sample size. (C) 2013 by the American Congress of Rehabilitation Medicine