Julia L Rapicavoli, Luis A Feigenbaum, Kathryn E Roach, Eryn K Milian
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Subjects were separated into groups based on participation in a jumping sport (volleyball) versus a cutting sport (soccer and tennis). Differences in concentric quadriceps peak torque between the dominant and non-dominant legs at 60 deg/sec, measured using the Biodex System 3 isokinetic dynamometer, were compared across groups. Athletes of each sport type were classified as \"dominant stronger\", \"equal\", or \"non-dominant stronger\" based on the differences between leg strength using a cut-off value of a difference of 10ft-lbs of torque. Odds ratios were calculated to determine the association between sport exposure and quadriceps strength on the dominant side.</p><p><strong>Results: </strong>Jumping athletes were 30 times (OR=29.96 (CI 95%, 1.56 - 577.25) more likely than cutting athletes to have a stronger dominant quadriceps. In jumping athletes, the participants were distributed almost evenly across the \"dominant stronger\", \"non-dominant stronger\", and \"equal\" groups. In cutting athletes, 76.9% fell into the \"equal\" category, while the remaining 23.1% fell into the \"non-dominant stronger\" category.</p><p><strong>Conclusion: </strong>Female collegiate jumping athletes were much more likely to have a stronger quadriceps on the dominant vs non-dominant leg than were cutting athletes. This information can be used to help develop specific strength and conditioning and rehabilitative programs for female athletes.</p><p><strong>Level of evidence: </strong>Level 3.</p>","PeriodicalId":47892,"journal":{"name":"International Journal of Sports Physical Therapy","volume":"20 6","pages":"793-800"},"PeriodicalIF":1.6000,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12129627/pdf/","citationCount":"0","resultStr":"{\"title\":\"Comparing the Dominant and Non-Dominant Leg Strength of Division I Collegiate Female Cutting Athletes to Jumping Athletes: A Pilot Study.\",\"authors\":\"Julia L Rapicavoli, Luis A Feigenbaum, Kathryn E Roach, Eryn K Milian\",\"doi\":\"10.26603/001c.137955\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Assessing lower extremity strength and performance is common practice in sports medicine. Sport-specific demands could impact the amount of leg strength asymmetry between the dominant and non-dominant leg present in athletes.</p><p><strong>Hypothesis/purpose: </strong>The purpose of this pilot study was to explore the amount of lower limb strength asymmetry between the dominant and non-dominant of female collegiate athletes across different sports.</p><p><strong>Study design: </strong>Case control study.</p><p><strong>Methods: </strong>A total of 43 female Division I collegiate athletes from soccer, tennis, and volleyball teams participated in the study. Subjects were separated into groups based on participation in a jumping sport (volleyball) versus a cutting sport (soccer and tennis). Differences in concentric quadriceps peak torque between the dominant and non-dominant legs at 60 deg/sec, measured using the Biodex System 3 isokinetic dynamometer, were compared across groups. Athletes of each sport type were classified as \\\"dominant stronger\\\", \\\"equal\\\", or \\\"non-dominant stronger\\\" based on the differences between leg strength using a cut-off value of a difference of 10ft-lbs of torque. Odds ratios were calculated to determine the association between sport exposure and quadriceps strength on the dominant side.</p><p><strong>Results: </strong>Jumping athletes were 30 times (OR=29.96 (CI 95%, 1.56 - 577.25) more likely than cutting athletes to have a stronger dominant quadriceps. In jumping athletes, the participants were distributed almost evenly across the \\\"dominant stronger\\\", \\\"non-dominant stronger\\\", and \\\"equal\\\" groups. 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引用次数: 0
摘要
背景：评估下肢力量和表现是运动医学的常见做法。运动特定需求可能会影响运动员在优势腿和非优势腿之间的腿部力量不对称性。假设/目的：本初步研究旨在探讨大学女运动员在不同运动项目中优势和非优势下肢力量不对称的程度。研究设计：病例对照研究。方法：共43名来自足球、网球和排球女校一级运动员参与研究。研究对象根据参与跳高运动（排球）和切割运动（足球和网球）的程度被分成几组。使用Biodex System 3等速测功仪测量优势腿和非优势腿在60度/秒时的同心圆股四头肌峰值扭矩差异，比较各组之间的差异。每个运动类型的运动员被划分为“优势更强”、“同等”或“非优势更强”，基于腿部力量之间的差异，使用10英尺磅扭矩差异的临界值。计算比值比以确定运动暴露与优势侧股四头肌力量之间的关系。结果：跳远运动员比切割运动员拥有更强的优势股四头肌的可能性高30倍(OR=29.96 （CI 95%, 1.56 - 577.25）。在跳远运动员中，参与者几乎均匀地分布在“优势强者”、“非优势强者”和“平等”组中。在削减运动员中，76.9%属于“平等”类别，其余23.1%属于“非优势强者”类别。结论：女大学生跳远运动员在优势腿和非优势腿上比切割运动员更有可能拥有更强大的股四头肌。这些信息可以用来帮助女性运动员制定具体的力量、调节和康复计划。证据等级：三级。
Comparing the Dominant and Non-Dominant Leg Strength of Division I Collegiate Female Cutting Athletes to Jumping Athletes: A Pilot Study.
Background: Assessing lower extremity strength and performance is common practice in sports medicine. Sport-specific demands could impact the amount of leg strength asymmetry between the dominant and non-dominant leg present in athletes.
Hypothesis/purpose: The purpose of this pilot study was to explore the amount of lower limb strength asymmetry between the dominant and non-dominant of female collegiate athletes across different sports.
Study design: Case control study.
Methods: A total of 43 female Division I collegiate athletes from soccer, tennis, and volleyball teams participated in the study. Subjects were separated into groups based on participation in a jumping sport (volleyball) versus a cutting sport (soccer and tennis). Differences in concentric quadriceps peak torque between the dominant and non-dominant legs at 60 deg/sec, measured using the Biodex System 3 isokinetic dynamometer, were compared across groups. Athletes of each sport type were classified as "dominant stronger", "equal", or "non-dominant stronger" based on the differences between leg strength using a cut-off value of a difference of 10ft-lbs of torque. Odds ratios were calculated to determine the association between sport exposure and quadriceps strength on the dominant side.
Results: Jumping athletes were 30 times (OR=29.96 (CI 95%, 1.56 - 577.25) more likely than cutting athletes to have a stronger dominant quadriceps. In jumping athletes, the participants were distributed almost evenly across the "dominant stronger", "non-dominant stronger", and "equal" groups. In cutting athletes, 76.9% fell into the "equal" category, while the remaining 23.1% fell into the "non-dominant stronger" category.
Conclusion: Female collegiate jumping athletes were much more likely to have a stronger quadriceps on the dominant vs non-dominant leg than were cutting athletes. This information can be used to help develop specific strength and conditioning and rehabilitative programs for female athletes.
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