Bastien Maude, Moffet Hélène, Bouyer Laurent, Perron Marc, Hébert Luc J, Leblond Jean
CIRRIS Research Centre and the Faculty of Medicine, Laval University, Quebec City, QC, Canada.
J Sport Rehabil. 2014 Feb;23(1):44-55. doi: 10.1123/jsr.2012-0132. Epub 2013 Nov 14.
The Star Excursion Balance Test (SEBT) has frequently been used to measure motor control and residual functional deficits at different stages of recovery from lateral ankle sprain (LAS) in various populations. However, the validity of the measure used to characterize performance--the maximal reach distance (MRD) measured by visual estimation--is still unknown.
To evaluate the concurrent validity of the MRD in the SEBT estimated visually vs the MRD measured with a 3D motion-capture system and evaluate and compare the discriminant validity of 2 MRD-normalization methods (by height or by lower-limb length) in participants with or without LAS (n = 10 per group).
There is a high concurrent validity and a good degree of accuracy between the visual estimation measurement and the MRD gold-standard measurement for both groups and under all conditions. The Cohen d ratios between groups and MANOVA products were higher when computed from MRD data normalized by height.
The results support the concurrent validity of visual estimation of the MRD and the use of the SEBT to evaluate motor control. Moreover, normalization of MRD data by height appears to increase the discriminant validity of this test.
星标偏移平衡测试（SEBT）经常被用于测量不同人群在外侧踝关节扭伤（LAS）恢复的不同阶段的运动控制和残余功能缺陷。然而，用于表征表现的测量方法——通过视觉估计测量的最大伸展距离（MRD）——的有效性仍然未知。
评估在SEBT中通过视觉估计的MRD与通过三维运动捕捉系统测量的MRD之间的同时效度，并评估和比较两种MRD标准化方法（按身高或下肢长度）在有或无LAS的参与者（每组n = 10）中的判别效度。
在所有条件下，两组的视觉估计测量与MRD金标准测量之间都具有较高的同时效度和良好的准确度。当从按身高标准化的MRD数据计算时，组间的Cohen d比率和多变量方差分析结果更高。
结果支持MRD视觉估计的同时效度以及使用SEBT评估运动控制。此外，按身高对MRD数据进行标准化似乎会提高该测试的判别效度。
