Rapicavoli Julia L, Feigenbaum Luis A, Roach Kathryn E, Milian Eryn K
Department of Intercollegiate Athletics University of Miami.
Department of Physical Therapy University of Miami.
Int J Sports Phys Ther. 2025 Jun 2;20(6):793-800. doi: 10.26603/001c.137955. eCollection 2025.
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.
Case control study.
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.
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.
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.
Level 3.
评估下肢力量和表现是运动医学中的常见做法。特定运动的需求可能会影响运动员优势腿和非优势腿之间腿部力量不对称的程度。
假设/目的：这项初步研究的目的是探讨不同运动项目中女子大学生运动员优势腿和非优势腿之间下肢力量不对称的程度。
病例对照研究。
共有43名来自足球、网球和排球队的女子一级大学生运动员参与了该研究。受试者根据参与跳跃运动（排球）与切入运动（足球和网球）分为不同组。使用Biodex System 3等速测力计在60度/秒时测量优势腿和非优势腿之间的同心股四头肌峰值扭矩差异，并在各组之间进行比较。根据腿部力量差异（扭矩差为10英尺磅的临界值），将每种运动类型的运动员分为“优势腿更强”、“相等”或“非优势腿更强”。计算优势比以确定运动暴露与优势侧股四头肌力量之间的关联。
跳跃运动员优势股四头肌更强的可能性是切入运动员的30倍（优势比=29.96（95%置信区间，1.56 - 577.25））。在跳跃运动员中，参与者几乎均匀分布在“优势腿更强”、“非优势腿更强”和“相等”组中。在切入运动员中，76.9%属于“相等”类别，而其余23.1%属于“非优势腿更强”类别。
与切入运动员相比，女子大学生跳跃运动员优势腿的股四头肌比非优势腿更强的可能性要大得多。这些信息可用于帮助为女子运动员制定特定的力量训练和康复计划。
3级。
