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Association of the Single-Limb Hop Test With Isokinetic, Kinematic, and Kinetic Asymmetries in Patients After Anterior Cruciate Ligament Reconstruction

Journal Article


Abstract


  • Background: Asymmetries persist after anterior cruciate ligament reconstruction (ACLR). Physical performance tests such as the single-limb hop test have been used extensively to assess return-to-sport criteria, as they reproduce dynamic athletic maneuvers. Hypothesis: The single-limb hop is associated with muscle strength and kinematic and kinetic asymmetries in ACLR patients 6 to 9 months after surgery. Study Design: Controlled laboratory study. Methods: Twenty-two men with ACLR (mean age, 28.8 �� 11.2 years) at 6 to 9 months (mean, 7.01 �� 0.93 months) after surgery completed isokinetic testing in 3 velocities (120, 180, and 300 deg/s) and a kinetic, kinematic, and functional evaluation of the single-limb hop test. Pearson correlation coefficients were used to assess the relationship between the Limb Symmetry Index (LSI) of the single-limb hop distance and each of the outcome variables. Results: There were significant positive correlations between the LSI of the single-limb hop distance and the LSI of the peak extension torque at 120 deg/s (P = 0.044, r = 0.37) and the peak extension torque at 180 deg/s (P = 0.042, r = 0.38) as well as a negative correlation with the peak flexion torque at 180 deg/s (P = 0.043, r = ���0.38). The LSI of the single-limb hop test was not correlated with any kinetic or kinematic variable (P > 0.05). Conclusion: The findings of the present study demonstrate that distance LSI of the single-limb hop test correlates with isokinetic extension peak torque LSI but not kinetic and kinematic asymmetry. Clinical Relevance: The single-limb hop test can be used as an additional tool for the recognition of muscle strength asymmetries but not for kinetic or kinematic asymmetries 6 to 9 months after ACLR

Publication Date


  • 2015

Citation


  • Xergia, S. A., Pappas, E., & Georgoulis, A. D. (2015). Association of the Single-Limb Hop Test With Isokinetic, Kinematic, and Kinetic Asymmetries in Patients After Anterior Cruciate Ligament Reconstruction. Sports Health, 7(3), 217-223. doi:10.1177/1941738114529532

Scopus Eid


  • 2-s2.0-84928104989

Start Page


  • 217

End Page


  • 223

Volume


  • 7

Issue


  • 3

Place Of Publication


Abstract


  • Background: Asymmetries persist after anterior cruciate ligament reconstruction (ACLR). Physical performance tests such as the single-limb hop test have been used extensively to assess return-to-sport criteria, as they reproduce dynamic athletic maneuvers. Hypothesis: The single-limb hop is associated with muscle strength and kinematic and kinetic asymmetries in ACLR patients 6 to 9 months after surgery. Study Design: Controlled laboratory study. Methods: Twenty-two men with ACLR (mean age, 28.8 �� 11.2 years) at 6 to 9 months (mean, 7.01 �� 0.93 months) after surgery completed isokinetic testing in 3 velocities (120, 180, and 300 deg/s) and a kinetic, kinematic, and functional evaluation of the single-limb hop test. Pearson correlation coefficients were used to assess the relationship between the Limb Symmetry Index (LSI) of the single-limb hop distance and each of the outcome variables. Results: There were significant positive correlations between the LSI of the single-limb hop distance and the LSI of the peak extension torque at 120 deg/s (P = 0.044, r = 0.37) and the peak extension torque at 180 deg/s (P = 0.042, r = 0.38) as well as a negative correlation with the peak flexion torque at 180 deg/s (P = 0.043, r = ���0.38). The LSI of the single-limb hop test was not correlated with any kinetic or kinematic variable (P > 0.05). Conclusion: The findings of the present study demonstrate that distance LSI of the single-limb hop test correlates with isokinetic extension peak torque LSI but not kinetic and kinematic asymmetry. Clinical Relevance: The single-limb hop test can be used as an additional tool for the recognition of muscle strength asymmetries but not for kinetic or kinematic asymmetries 6 to 9 months after ACLR

Publication Date


  • 2015

Citation


  • Xergia, S. A., Pappas, E., & Georgoulis, A. D. (2015). Association of the Single-Limb Hop Test With Isokinetic, Kinematic, and Kinetic Asymmetries in Patients After Anterior Cruciate Ligament Reconstruction. Sports Health, 7(3), 217-223. doi:10.1177/1941738114529532

Scopus Eid


  • 2-s2.0-84928104989

Start Page


  • 217

End Page


  • 223

Volume


  • 7

Issue


  • 3

Place Of Publication