Document Type
Article
Publication Date
9-2012
Abstract
Purpose
The purpose of this study was to investigate the effect of anterior cruciate ligament (ACL) reconstruction on the quadriceps-dominant strategy as a parameter associated with the neuromuscular control of the knee joint.
Methods
In this study 14 competitive soccer players who had undergone ACL reconstruction with bone–patellar tendon–bone autograft and 14 healthy competitive soccer players performed two 10-minute treadmill runs, 1 at moderate intensity and 1 at high intensity. Electromyographic recordings were acquired by use of a telemetric system at the third, fifth, seventh, and tenth minute of the runs from the vastus lateralis and the biceps femoris bilaterally. The dependent variable examined was the peak electromyographic amplitude during the stance phase. Analyses of variance were used to examine significant main effects and interactions.
Results
Vastus lateralis electromyographic activity during high-intensity running increased for both the control leg and intact leg (F = 4.48, P < .01), whereas it remained unchanged for the reconstructed leg (P > .05). Biceps femoris electromyographic activity during high-intensity running increased for the reconstructed leg only compared with both the control leg (F = 3.03, P < .05) and intact leg (F = 3.36, P < .03).
Conclusions
There is no presence of the quadriceps-dominant strategy in ACL-reconstructed athletes during moderate-intensity exercise. During high-intensity exercise, the intact contralateral leg develops the quadriceps-dominant strategy whereas the reconstructed leg does not. The reconstructed leg instead increases biceps femoris activity, developing a “hamstring-dominant” strategy, and this “asymmetry” may theoretically be in favor of the reconstructed knee.
Level of Evidence
Level III, retrospective comparative study.
Journal Title
Arthroscopy
Volume
28
Issue
9
First Page
1262
Last Page
1270
Recommended Citation
Patras, Kostas; Zampeli, Franceska; Ristanis, Stavros; Tsepis, Elias; Ziogas, Giorgos; Stergiou, Nikolaos; and Georgoulis, Anastasios D., "Hamstring-Dominant Strategy of the Bone–Patellar Tendon–Bone Graft Anterior Cruciate Ligament–Reconstructed Leg Versus Quadriceps-Dominant Strategy of the Contralateral Intact Leg During High-Intensity Exercise in Male Athletes" (2012). Journal Articles. 88.
https://digitalcommons.unomaha.edu/biomechanicsarticles/88
Comments
NOTICE: this is the author’s version of a work that was accepted for publication in Arthroscopy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Arthroscopy, Vol. 28, Issue 9 (September 2012) DOI: