Cocontracción y coactivación muscular en lesiones del ligamento cruzado anterior. Una revisión bibliográfica

The anterior cruciate ligament is one of the most important structures for the stabilisation of the knee joint. In the prevention of this structure, quadriceps / hamstring coactivation is of special importance for dynamic stabilisation of the joint. The aim of this study was to perform a systematic review to determine the degree of coactivation and muscle co-contraction in individuals with anterior cruciate ligament injury. To do this, a search was performed in the following databases: Web of Science, Pubmed, Scopus, Medline, Sport Discuss and Cinahl. After application of the inclusion and exclusion criteria, 14 articles were found. The results do not show agreement due to variation in the tests, samples and musculature tested. We conclude that, in individuals with alterations of the anterior cruciate ligament, there is a tendency to increase co-contraction and muscular coactivation to decrease the anterior translation of the tibia. The type of exercise performed influences the degree of co-contraction and muscle coactivation in individuals with alterations of the anterior cruciate ligament. Homogeneous studies are required to reach a common conclusion on the subject.