Fullam Karl, Caulfield Brian, Coughlan Garrett F, Delahunt Eamonn
School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland.
J Sport Rehabil. 2014 Feb;23(1):27-35. doi: 10.1123/jsr.2012-0114. Epub 2013 Aug 12.
The Star Excursion Balance Test (SEBT) and the Y-Balance Test (YBT) have 3 common reach directions: anterior (ANT), posteromedial (PM), and posterolateral (PL). Previous research has indicated that reach-distance performance on the ANT reach direction of the SEBT differs from that on the YBT. Kinematic patterns associated with the ANT reach direction of the SEBT and YBT need to be investigated to fully understand this difference, along with the PM and PL reach directions, to deduce any kinematic discrepancies between the 2 balance tests.
To compare and contrast the kinematic patterns associated with test performance on the reach directions common to the SEBT and YBT.
Controlled laboratory study.
University laboratory.
15 healthy male (age 23.33 ± 2.02 y, height 1.77 ± 0.04 m, body mass 80.00 ± 9.03 kg) and 14 healthy female (age 21.14 ± 1.66 y, height 1.63 ± 0.06 m, body mass 59.58 ± 7.61 kg) volunteers.
Each participant performed 3 trials of the ANT, PM, and PL reach directions of the SEBT and YBT on their dominant leg.
Sagittal-plane lower-limb kinematic profiles were recorded using a 3-D motion-analysis system. Reach distances were also recorded for each reach direction.
A significant main effect (P < .05) was observed for test condition with participants reaching farther on the ANT reach direction of the SEBT compared with the YBT. While reaching in the ANT direction participants were characterized by a more flexed position of the hip joint at the point of maximum reach on the YBT (27.94° ± 13.84°) compared with the SEBT (20.37° ± 18.64°).
Based on these observed results, the authors conclude that test performance on the SEBT and YBT differ in terms of dynamic neuro-muscular demands, as evidenced by differences in reach distances achieved in the ANT reach direction and associated test kinematic profile.
星标偏移平衡测试（SEBT）和Y平衡测试（YBT）有三个共同的伸展方向：前方（ANT）、后内侧（PM）和后外侧（PL）。先前的研究表明，SEBT的ANT伸展方向上的伸展距离表现与YBT的不同。需要研究与SEBT和YBT的ANT伸展方向相关的运动模式，以及PM和PL伸展方向，以充分理解这种差异，从而推断出这两种平衡测试之间的任何运动差异。
比较和对比与SEBT和YBT共有的伸展方向上的测试表现相关的运动模式。
对照实验室研究。
大学实验室。
15名健康男性（年龄23.33±2.02岁，身高1.77±0.04米，体重80.00±9.03千克）和14名健康女性（年龄21.14±1.66岁，身高1.63±0.06米，体重59.58±7.61千克）志愿者。
每位参与者在其优势腿上对SEBT和YBT的ANT、PM和PL伸展方向各进行3次试验。
使用三维运动分析系统记录矢状面下肢运动学特征。还记录了每个伸展方向的伸展距离。
观察到测试条件有显著的主效应（P<.05），与YBT相比，参与者在SEBT的ANT伸展方向上伸展得更远。在ANT方向伸展时，与SEBT（20.37°±18.64°）相比，参与者在YBT上最大伸展点处髋关节的屈曲位置更大（27.94°±13.84°）。
基于这些观察结果，作者得出结论，SEBT和YBT的测试表现在动态神经肌肉需求方面存在差异，这在ANT伸展方向上实现的伸展距离差异以及相关测试运动学特征中得到了证明。
