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Article

Evaluation of Isokinetic Single-Leg Cycling as a Rehabilitation Exercise Following Anterior Cruciate Ligament Reconstruction Surgery

by
Randolph Hutchison
1,*,
Jessica Myers
2,
Nicholas Hayden
1,
Lee Shearer
1,
Kaitlin Bruneau
1 and
John D. DesJardins
2
1
Department of Health Sciences, Furman University, Greenville, SC 29613, USA
2
Department of Bioengineering, Clemson University, Clemson, SC 29613, USA
*
Author to whom correspondence should be addressed.
J. Funct. Morphol. Kinesiol. 2017, 2(3), 32; https://doi.org/10.3390/jfmk2030032
Submission received: 26 July 2017 / Revised: 15 August 2017 / Accepted: 21 August 2017 / Published: 31 August 2017
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Abstract

The anterior cruciate ligament (ACL) is one of the most commonly injured ligaments, with over 250,000 injuries per year in the United States. Previous studies have found that ACL-deficient individuals avoid use of the quadriceps in the injured limb as a means of limiting anterior movement of the tibia in the absence of a functioning ACL. From these results, a study was designed to investigate the effectiveness of isokinetic single-leg cycling in increasing quadriceps muscle recruitment and activation. Ten control and seven ACL-reconstructed subjects completed a series of 15 s cycling trials in isokinetic mode at 75 rpm, while kinematic, kinetic, and electromyographic data of the lower limbs were collected, with the trials including both double-leg and single-leg cycling. It was hypothesized that there would be an increase in quadriceps muscle activity, peak knee extensor moment, and knee joint power in single-leg cycling when compared to double-leg cycling. The results of the study suggest that single-leg cycling may be an effective exercise in increasing the strength of the quadriceps following anterior cruciate ligament reconstruction surgery. Although no significant changes occurred, the results indicate that, given a specific limb power, more muscle force will be generated from the quadriceps muscle group in single-leg cycling than double-leg cycling.
Keywords: quadriceps avoidance; ACL rehabilitation; electromyography; joint kinetics; joint kinematics quadriceps avoidance; ACL rehabilitation; electromyography; joint kinetics; joint kinematics
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MDPI and ACS Style

Hutchison, R.; Myers, J.; Hayden, N.; Shearer, L.; Bruneau, K.; DesJardins, J.D. Evaluation of Isokinetic Single-Leg Cycling as a Rehabilitation Exercise Following Anterior Cruciate Ligament Reconstruction Surgery. J. Funct. Morphol. Kinesiol. 2017, 2, 32. https://doi.org/10.3390/jfmk2030032

AMA Style

Hutchison R, Myers J, Hayden N, Shearer L, Bruneau K, DesJardins JD. Evaluation of Isokinetic Single-Leg Cycling as a Rehabilitation Exercise Following Anterior Cruciate Ligament Reconstruction Surgery. Journal of Functional Morphology and Kinesiology. 2017; 2(3):32. https://doi.org/10.3390/jfmk2030032

Chicago/Turabian Style

Hutchison, Randolph, Jessica Myers, Nicholas Hayden, Lee Shearer, Kaitlin Bruneau, and John D. DesJardins. 2017. "Evaluation of Isokinetic Single-Leg Cycling as a Rehabilitation Exercise Following Anterior Cruciate Ligament Reconstruction Surgery" Journal of Functional Morphology and Kinesiology 2, no. 3: 32. https://doi.org/10.3390/jfmk2030032

APA Style

Hutchison, R., Myers, J., Hayden, N., Shearer, L., Bruneau, K., & DesJardins, J. D. (2017). Evaluation of Isokinetic Single-Leg Cycling as a Rehabilitation Exercise Following Anterior Cruciate Ligament Reconstruction Surgery. Journal of Functional Morphology and Kinesiology, 2(3), 32. https://doi.org/10.3390/jfmk2030032

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