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ORIGINAL RESEARCH:

The Influence of Hip Strength on Knee Kinematics during a Single-Legged Medial Drop Landing Among Competitive Collegiate Basketball Players

Authors:  Suzuki H, Omori G, Uematsu D, Nishino K, Endo N

A smaller knee flexion angle and larger knee valgus angle during weight-bearing activities have been identified as risk factors for non-contact anterior cruciate ligament (ACL) injuries. To prevent such injuries, attention has been focused on the role of hip strength in knee motion control. However, gender differences in the relationship between hip strength and knee kinematics during weight-bearing activities in the frontal plane have not been evaluated.  Therefore, the purpose of this study was to determine the influence of hip strength on knee kinematics in the frontal plane in males and females during a single-legged landing task. Significant correlations between hip strength and knee kinematics during SML were observed in both genders. Hip strength may, therefore, play an important role in knee motion control during sports activities, suggesting that increased hip strength may help to prevent non-contact ACL injuries in athletes of both genders. Moreover, gender-specific programs may be needed to control abnormal knee motion, as the influence of hip strength on knee kinematics may differ based on gender.

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