The relationship between lower extremity muscle activity and knee flexion angle during a jump-landing task Public Deposited
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- Last Modified
- March 21, 2019
Walsh, Meghan C.
- Affiliation: College of Arts and Sciences, Department of Exercise and Sport Science
- Objective: To determine relationships between lower extremity muscle activity and knee flexion angle during a jump-landing task. Subjects: Thirty recreationally active people free from previous ACL injury. Methods: Muscle activity of the lower extremity and knee flexion angle were recorded during 10 trials of the jump-landing task. Data was analyzed using correlation and multiple regression statistical analyses. Results: Eight significant negative relationships were found, VMO, GMAX activity and Q:H ratio with knee flexion angle at initial contact (VMO: r = -0.382, P = 0.045, GMAX: r = -0.385, P = 0.043, Q:H ratio: r = -.442, P = .018). VMO, VL, and GMAX activity with peak knee flexion angle (VMO: r = -0.687, P =0.00, VL: r = -0.467, P = .011, GMAX: r = -0.386, P = 0.043). VMO and VL activity with knee flexion displacement (VMO: r = -0.631, P= 0.00, VL: r = -0.453, P = 0.014). Q:H ratio and GMAX activity predicted 34.7% of knee flexion angle variance at initial contact (R2= 0.347, P =
- Date of publication
- August 2008
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- In Copyright
- Padua, Darin A.
- Degree granting institution
- University of North Carolina at Chapel Hill
- Open access
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|The relationship between lower extremity muscle activity and knee flexion angle during a jump-landing task||2019-04-11||Public||