Comparison Of Isokinetic Muscle Performance In Active, Healthy Males And Females
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Patellofemoral pain syndrome (PFPS), is a common disorder seen in athletes, and more frequently in females (Taunton et al., 2002). Studies have attributed it to 10% of all medical consultations and 25% of all injuries to the knee treated in sports clinics. People with this disorder experience uncomfortable pain around the patella and the patellofemoral joint of the knee. The purpose of this study was to examine lower extremity muscle performance differences and relationships in active, healthy males and females to determine attributes towards knee injuries, such as PFPS. Previous research has shown that deficits in certain muscle groups may attribute to higher risk of developing knee pain. It is hypothesized that peak torques in all females will be less when compared to males. Subjects were recruited through printed flyers and word-of-mouth methods. After informed consent was provided and signed, subjects’ (N= 10) weight, height, and BMI were recorded. Subjects then underwent a series of muscle performance tests using the Biodex System 4 Isokinetic Dynamometer. Actions performed in this study included knee extension and flexion, hip external rotation, and hip abduction. All movements consisted of a concentric and eccentric portion in an isokinetic setting. Results: Pearson correlations of data thus far indicate that there are relationships between body weight, BMI, and concentric and eccentric peak torques. Further research needs to be conducted to support the hypothesis.
Rhonda Cross Beemer, PhD, ATC (Mentor)