着陆误差评分系统结果与躯干肌肉厚度之间的关系
Relationship Between the Results of the Landing Error Scoring System and Trunk Muscle Thickness.
作者信息
Muramoto Yuki, Kuruma Hironobu
出版信息
Int J Sports Phys Ther. 2024 Sep 1;19(9):1080-1087. doi: 10.26603/001c.122639. eCollection 2024.
BACKGROUND
A landing error scoring system (LESS) is widely used to evaluate landing maneuvers. Poor landing maneuvers, such as lateral bending of the trunk, are thought to be associated with a risk of lower-extremity injury. However, no studies have examined the association between landing and trunk muscle function, which is associated with a high risk of lower-extremity injury.
HYPOTHESIS/PURPOSE: This study examined whether an association exists between landing movements and a high risk of lower-extremity injury and trunk muscle function. It was hypothesized that athletes with poor activation of deep trunk muscle (transversus abdominis and internal oblique) would have lower LESS scores.
STUDY DESIGN
Cross-sectional study.
METHODS
The trunk muscle thickness at rest and during the plank was measured using ultrasonography. The percent of change in muscle thickness (during plank/at rest) was calculated. The LESS was measured using the Physimax. Based on the LESS scores, patients were divided into high- (LESS > 6) and low-risk (5 > LESS) groups for lower extremity injury. The relationship between the high-risk group and trunk muscle thickness was examined using a stepwise regression analysis.
RESULTS
The high-risk group had significantly lower muscle thicknesses of the transversus abdominis (p=0.02) and transversus abdominis plus internal oblique abdominis (p=0.03) muscles during the plank. Additionally, the high-risk group showed significantly lower percent of change in muscle thickness of the internal oblique (p=0.02) and transversus abdominis plus internal oblique (p=0.01) muscles. Only the percentage of change in the thickness of the internal oblique and transverse abdominal muscles was extracted from the regression as a factor.
CONCLUSION
The findings indicated that athletes with landing movements and a high risk of injury, as determined based on the LESS results, had low trunk muscle function, and a relationship was observed between the change in thickness of transversus abdominis and internal oblique abdominis muscles.
LEVEL OF EVIDENCE
3B.
背景
落地误差评分系统（LESS）被广泛用于评估落地动作。不良的落地动作，如躯干侧弯，被认为与下肢受伤风险相关。然而，尚无研究探讨落地与躯干肌肉功能之间的关联，而躯干肌肉功能与下肢受伤高风险有关。
假设/目的：本研究探讨落地动作与下肢受伤高风险及躯干肌肉功能之间是否存在关联。研究假设为，深层躯干肌肉（腹横肌和腹内斜肌）激活不良的运动员LESS得分较低。
研究设计
横断面研究。
方法
使用超声测量静息及平板支撑时的躯干肌肉厚度。计算肌肉厚度的变化百分比（平板支撑时/静息时）。使用Physimax测量LESS。根据LESS得分，将患者分为下肢受伤高风险组（LESS>6）和低风险组（5>LESS）。采用逐步回归分析检验高风险组与躯干肌肉厚度之间的关系。
结果
高风险组在平板支撑时腹横肌（p=0.02）以及腹横肌加腹内斜肌（p=0.03）的肌肉厚度显著更低。此外，高风险组腹内斜肌（p=0.02）以及腹横肌加腹内斜肌（p=0.01）的肌肉厚度变化百分比显著更低。回归分析仅提取腹内斜肌和腹横肌厚度变化百分比作为一个因素。
结论
研究结果表明，根据LESS结果判定为落地动作且受伤风险高的运动员，其躯干肌肉功能较低，并观察到腹横肌和腹内斜肌厚度变化之间存在关联。
证据水平
3B。
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