ArticleInternational journal of sports physical therapy2025
Comparing the Dominant and Non-Dominant Leg Strength of Division I Collegiate Female Cutting Athletes to Jumping Athletes: A Pilot Study.
Article in International journal of sports physical therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
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. Level of Evidence: Level 3.
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