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Gender differences in strength and lower extremity kinematics during landing
Scott M Lephart1, Cheryl M Ferris, Bryan L Riemann
1Neuromuscular Research Laboratory, Musculoskeletal Research Center, Department of Orthopedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15203, USA. lephart@pitt.edu
Clinical Orthopaedics and Related Research
|August 2, 2002
Summary
Female athletes exhibit distinct landing and hopping biomechanics compared to males, with less knee flexion and weaker thigh muscles. These differences may influence injury risk in sports like basketball, volleyball, and soccer.
Area of Science:
- Biomechanics
- Sports Medicine
- Orthopedics
Background:
- Athletic performance and injury risk are influenced by biomechanical differences between sexes.
- Understanding sex-based kinematic and strength variations is crucial for injury prevention strategies in female athletes.
Purpose of the Study:
- To compare kinematic, ground reaction force, and strength variables between male and female collegiate athletes.
- To identify sex-specific biomechanical patterns during single-leg landing and forward hop tasks.
Main Methods:
- Thirty collegiate athletes (male and female) from basketball, volleyball, and soccer participated.
- Kinematic data were collected using an electromagnetic tracking device, and vertical ground reaction forces were measured with a force plate.
- Isokinetic dynamometry assessed quadriceps and hamstring peak torque relative to body mass.
Main Results:
- Females demonstrated significantly less knee flexion and lower leg internal rotation during both tasks.
- Females exhibited altered hip and lower leg rotation patterns compared to males during specific tasks.
- Female athletes showed significantly lower quadriceps and hamstring peak torque relative to body mass.
Conclusions:
- Female athletes display unique biomechanical strategies during landing and hopping, characterized by reduced knee flexion and greater lower leg stiffness.
- Lower relative thigh muscle strength in females may contribute to observed landing mechanics and potentially influence injury risk.
- These findings highlight the need for sex-specific training and rehabilitation programs to address biomechanical differences and mitigate injury risk in female athletes.