1 Department of Research in Rehabilitation and Health Promotion, Faculty of Health Sciences, VIA University College, Aarhus, Denmark.
2 Section for Sport Science, Department of Public Health, Aarhus University, Aarhus, Denmark.
Clin Rehabil. 2019 Jul;33(7):1206-1213. doi: 10.1177/0269215519833016. Epub 2019 Feb 25.
The aim of this study was to evaluate the concurrent and divergent validity of the Six-Spot Step Test in mild to moderately impaired people with Parkinson's disease.
Cross-sectional cohort study.
Outpatient clinics.
Fifty-eight people with Parkinson's disease.
The Six-Spot Step Test, the Timed "Up and Go" test, the mini-Balance Evaluation Systems Test (mini-BESTest), and postural sway were tested on the same day, and the Spearman's Rank Correlation Coefficient (ρ) was used for data analysis.
Subjects had a median age of 68 years (Q1-Q3: 62-73), a median Hoehn and Yahr score of 2.5 (Q1-Q3: 2-3), a median Six-Spot Step Test score of 7.9 seconds (Q1-Q3: 6.5-9.2), a median Timed "Up and Go" test score of 7.0 seconds (Q1-Q3: 5.6-7.9), a median mini-BESTest score of 22.5 (Q1-Q3: 19.8-25.0), and a median postural sway score of 27.9 mm (Q1-Q3: 15.0-53.5) and 22.5 mm/s (Q1-Q3: 14.6-39.8). Statistical significant correlations were found between the Six-Spot Step Test and the Timed "Up and Go" test (ρ = 0.81) and the mini-BESTest (ρ = -0.64), whereas no significant relations were identified between the Six-Spot Step Test and postural sway (ρ = 0.18, > 0.05).
In patients with Parkinson's disease, the Six-Spot Step Test showed promising concurrent validity to other recommended clinical tests for encompassing balance capacity and capacity of functional mobility, making it a reasonable and easily administered alternative to existing assessment tools when measuring walking agility. As expected, weak correlates to postural sway revealed that the Six-Spot Step test is not a valid measure of standing balance.
本研究旨在评估六步台阶测试在轻至中度帕金森病患者中的同时效度和区分效度。
横断面队列研究。
门诊诊所。
58 名帕金森病患者。
六步台阶测试、计时“起身行走”测试、简易平衡评估系统测试（mini-BESTest）和姿势摆动，同日进行测试，采用 Spearman 秩相关系数（ρ）进行数据分析。
受试者的中位年龄为 68 岁（Q1-Q3：62-73），Hoehn 和 Yahr 评分中位数为 2.5（Q1-Q3：2-3），六步台阶测试评分中位数为 7.9 秒（Q1-Q3：6.5-9.2），计时“起身行走”测试评分中位数为 7.0 秒（Q1-Q3：5.6-7.9），简易平衡评估系统测试评分中位数为 22.5（Q1-Q3：19.8-25.0），姿势摆动评分中位数为 27.9mm（Q1-Q3：15.0-53.5）和 22.5mm/s（Q1-Q3：14.6-39.8）。六步台阶测试与计时“起身行走”测试（ρ=0.81）和简易平衡评估系统测试（ρ=-0.64）呈显著相关，而与姿势摆动无显著相关性（ρ=0.18，>0.05）。
在帕金森病患者中，六步台阶测试与其他推荐的临床测试在评估平衡能力和功能性移动能力方面具有良好的同时效度，是评估行走敏捷性时替代现有评估工具的合理且易于实施的选择。如预期的那样，与姿势摆动的弱相关性表明，六步台阶测试不是站立平衡的有效测量方法。
