Neuromuscular and Human Performance Laboratory, Department of Physiotherapy, Ariel University, Israel.
Phys Ther Sport. 2023 Mar;60:104-111. doi: 10.1016/j.ptsp.2023.01.011. Epub 2023 Jan 31.
To examine the relationship between two dynamic postural tasks in subjects with and without chronic ankle instability (CAI).
Cross-sectional study.
Biomechanics lab.
Thirty subjects with CAI and 30 healthy controls.
Performance of two dynamic postural control tests: the modified Star-Excursion Balance Test (mSEBT) and an assessment of a single limb jump-landing on a force plate that yielded two outcomes: time to stabilization (TTS) and the absolute average force in the mediolateral plane during the first 0.4 s after landing (AAF).
In the CAI group, a significant correlation was found between the mSEBT score and the AAF (ρ = -0.54, p < 0.01), but not between the mSEBT or TTS or between the AAF and the TTS. However, in the control group, a significant correlation was found between AAF and the TTS (ρ = 0.43, p < 0.05), but not between the mSEBT and TTS or between the mSEBT and AAF.
These results suggest that there is no association between the different dynamic balance tasks. The different pattern of association in individuals with CAI may indicate altered central neural control. Clinicians and researchers should therefore not use a single task to assess dynamic postural control.
研究慢性踝关节不稳（CAI）患者和无 CAI 患者在两种动态姿势任务中的关系。
横断面研究。
生物力学实验室。
30 名 CAI 患者和 30 名健康对照者。
两种动态姿势控制测试的表现：改良星形平衡测试（mSEBT）和单足跳落在力板上的评估，产生两个结果：稳定时间（TTS）和着陆后 0.4 s 内中侧平均力（AAF）。
在 CAI 组中，mSEBT 评分与 AAF 之间存在显著相关性（ρ=-0.54，p<0.01），但 mSEBT 或 TTS 之间或 AAF 和 TTS 之间没有相关性。然而，在对照组中，AAF 与 TTS 之间存在显著相关性（ρ=0.43，p<0.05），但 mSEBT 和 TTS 之间或 mSEBT 和 AAF 之间没有相关性。
这些结果表明，不同的动态平衡任务之间没有关联。CAI 患者的关联模式不同可能表明中枢神经控制发生改变。因此，临床医生和研究人员不应使用单一任务来评估动态姿势控制。
