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Revista Portuguesa de Ciências do Desporto
versión impresa ISSN 1645-0523
Resumen
GONCALVES, Rui S. y PINHEIRO, J. Páscoa. Co-activation of the knee joint flexors and extensors muscles in isokinetics conditions. Rev. Port. Cien. Desp. [online]. 2005, vol.5, n.2, pp.215-223. ISSN 1645-0523.
The co-activation of the knee flexors and extensors muscles has been largely examined resorting to surface electromyography. The aim of this review is to present findings related to the contribution of the antagonist electromyographic (EMG) activity to the motors actions of the knee joint complex in isokinetics conditions. The factors angular position, type of muscle action and angular velocity influence the antagonist EMG activity levels. In isokinetics conditions the antagonist activation contributes to the restriction of the resultant joint moment and the maintenance of the joint stability.
Palabras clave : co-activation; knee; surface electromyography; isokinetic dynamometry.