Comparison of Knee-Joint Moments in Male and Female College Soccer Players during a Single-Leg Landing
in Journal of Sport RehabilitationClick name to view affiliation
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Context:
Although kinematic analyses are helpful in describing movement differences between genders, kinetic data might further explain the predisposing factors contributing to potential injury during athletic landing maneuvers.
Objective:
To determine whether there are differences in knee moments between male and female varsity college soccer players during a single-leg landing.
Design:
Preexperimental with static group comparison.
Setting:
Motion-analysis laboratory.
Participants:
16 varsity college soccer players (8 men, 8 women).
Intervention:
Subjects performed 5 single-leg landings from a height of 60 cm.
Main Outcome Measures:
Peak internal rotation, valgus, varus, and extension knee moments calculated from raw ground-reaction forces and kinematic data.
Results:
Significant gender differences were present (P = .020), with men exhibiting 31% greater mean peak knee-varus moments than women when landing on a single leg from 60 cm (P = .020).
Conclusions:
Male soccer players demonstrate greater knee-varus moments than female soccer players during single-leg landing. This might be valuable in designing clinical treatment and prevention programs for ACL injuries.
Garrison, Hart, and Ingersoll are with the Dept of Kinesiology, and Kerrigan, the Dept of Physical Medicine, University of Virginia, Charlottesville, VA 22904-4407. Palmieri is with the Kinesiology Dept, University of Michigan, Ann Arbor, MI 48109-2214.
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