{"title":"Relationship Between the Results of the Landing Error Scoring System and Trunk Muscle Thickness.","authors":"Yuki Muramoto, Hironobu Kuruma","doi":"10.26603/001c.122639","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>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.</p><p><strong>Hypothesis/purpose: </strong>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.</p><p><strong>Study design: </strong>Cross-sectional study.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>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.</p><p><strong>Conclusion: </strong>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.</p><p><strong>Level of evidence: </strong>3B.</p>","PeriodicalId":47892,"journal":{"name":"International Journal of Sports Physical Therapy","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11368443/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Sports Physical Therapy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.26603/001c.122639","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"SPORT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
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.
背景:着陆错误评分系统(LESS)被广泛用于评估着陆动作。躯干侧弯等不良着陆动作被认为与下肢受伤的风险有关。假设/目的:本研究探讨了着地动作与下肢受伤高风险和躯干肌肉功能之间是否存在关联。假设躯干深层肌肉(腹横肌和腹内斜肌)激活不良的运动员的 LESS 分数较低:研究设计:横断面研究:研究设计:横断面研究。方法:使用超声波测量静止时和平板支撑时的躯干肌肉厚度。计算肌肉厚度变化的百分比(平板运动时/静止时)。使用 Physimax 测量 LESS。根据 LESS 分数,患者被分为下肢损伤高风险组(LESS > 6)和低风险组(5 > LESS)。采用逐步回归分析法研究了高风险组与躯干肌肉厚度之间的关系:结果:在平板运动中,高危组腹横肌(P=0.02)和腹横肌加腹内斜肌(P=0.03)的肌肉厚度明显较低。此外,高风险组腹内斜肌(p=0.02)和腹横肌加腹内斜肌(p=0.01)的肌肉厚度变化百分比明显较低。只有腹内斜肌和腹横肌的厚度变化百分比作为一个因子被从回归中提取出来:研究结果表明,根据 LESS 结果确定的有落地动作且受伤风险高的运动员,其躯干肌肉功能较低,腹横肌和腹内斜肌的厚度变化之间存在关系:3B.