Department of Sport, Faculty of Sport Study, Biwako Seikei Sport College, Otsu, Japan -
Department of Physical Therapy, Faculty of Rehabilitation, Kobe International University, Kobe, Japan.
J Sports Med Phys Fitness. 2022 Feb;62(2):238-243. doi: 10.23736/S0022-4707.21.11920-6. Epub 2021 Feb 23.
Improving dynamic postural stability after lateral ankle sprain due to chronic ankle instability helps prevent recurrence, and changes in dynamic postural stability can be assessed with the Star Excursion Balance Test. To date, no studies have examined the change in Star Excursion Balance Test score after the end of a balance training program or whether chronic ankle instability affects the rate of change. To examine the effect of chronic ankle instability on changes in Star Excursion Balance Test. score over time after a balance training program.
Fifteen collegiate soccer players with chronic ankle instability selected with the Cumberland Ankle Instability Tool and ultrasonography. Participants completed a 6-week balance training program. We assessed the Star Excursion Balance Test 5 times (before and immediately after the program and 2, 4, and 6 weeks later) and examined differences in the duration of training effects by a 2-way analysis of variance, with Bonferroni correction for post hoc comparisons to explain any significant interactions. The significance level for all analyses was set at P<0.05. We performed statistical analyses with SPSS v. 25.
Analysis of the posterolateral and posteromedial scores in Star Excursion Balance Test showed a significant effect of time. Post hoc analysis of the posterolateral score showed that for each leg, participants reached significantly farther after the program than before (P=0.012). The posterolateral scores at 2, 4, and 6 weeks after the training program did not differ from before the program, but the posteromedial score was significantly improved immediately after the program (P=0.008) and also 2 (P=0.004) and 4 weeks later (P=0.006).
A 6-week balance training program to improve dynamic postural control can improve posterolateral and posteromedial scores in people with chronic ankle instability, and the improvements in posteromedial are still present 4 weeks after program completion.
改善慢性踝关节不稳定导致的外侧踝关节扭伤后的动态姿势稳定性有助于预防复发，而动态姿势稳定性的变化可以通过星状伸展平衡测试来评估。迄今为止，尚无研究探讨平衡训练计划结束后星状伸展平衡测试评分的变化，或者慢性踝关节不稳定是否会影响变化率。为了检查慢性踝关节不稳定对平衡训练计划结束后一段时间内星状伸展平衡测试评分变化的影响。
采用 Cumberland 踝关节不稳定工具和超声检查，选择 15 名患有慢性踝关节不稳定的大学生足球运动员。参与者完成了为期 6 周的平衡训练计划。我们在 5 次评估了星状伸展平衡测试（在计划之前和之后立即以及 2、4 和 6 周后），并通过双向方差分析检查了训练效果持续时间的差异，并用事后比较的 Bonferroni 校正来解释任何显著的相互作用。所有分析的显著性水平均设为 P<0.05。我们使用 SPSS v. 25 进行统计分析。
星状伸展平衡测试的后外侧和后内侧评分的分析显示时间有显著影响。后外侧评分的事后分析显示，每条腿在计划后都比计划前伸展得更远（P=0.012）。训练计划后 2、4 和 6 周的后外侧评分与计划前没有差异，但后内侧评分在计划后立即显著改善（P=0.008），并且在 2 周（P=0.004）和 4 周后（P=0.006）也有所改善。
改善动态姿势控制的 6 周平衡训练计划可以改善慢性踝关节不稳定患者的后外侧和后内侧评分，并且在计划完成后 4 周内后内侧的改善仍然存在。
