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A Effect of the Squat Convergence Exercise Among Knee Joint Angle on Quadricpes Strength in the Patients With Patellofemoral Pain Syndrome
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 Title & Authors
A Effect of the Squat Convergence Exercise Among Knee Joint Angle on Quadricpes Strength in the Patients With Patellofemoral Pain Syndrome
Cho, Sang-Hee; Lee, Su-Young;
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The purpose of this study was to suggest the effective squat exercise position to strengthening vastus medialis oblique, and vastus lateralis in quadriceps. Subjects were twenty patients with patellofemoral pain syndrome (PFPS) volunteered to participate in this study. All subjects were applied to static squat convergence exercise with knee flexed , , and for 30 seconds total 5 times. Measurement variables were maximal voluntary isometric contraction (MVIC) of the quadriceps, Q angle and length of thigh. Those were measured before and after the squat exercise on knee joint angle, change rate of which were used for statistical analysis. As a result, squat exercise with knee flexed increase significantly among knee joint angle in the MVIC change rates of quadriceps (p<.05), however the rates of Q-angle and length change of thigh showed no significant difference. Therefore, this findings suggest that squat exercise with knee flexed strengthen quadriceps effectively in patients with PFPS.
Vastus lateralis;Knee joint angle;Patellofemoral pain syndrome;Squat convergence exercise;Vastus medialis oblique;Maximal voluntary isometric contraction(MVIC);
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