Comparaison des r ésultats d’évaluations isocinétiques d’épaules réalisées sur deux dynamomètres différents (Cybex® et Contrex®) chez l’adulte sain

Conclusion Les résultats des tests isocinétiques d’épaule varient en fonction du dynamomètre utilisé avec d’importantes différences en termes de pic de force et de ratio utilisé. Leur utilisation en pratique clinique reste complexe malgré leur essor, notamment en traumatologie du sport. Aim To compare results of two different dynamometers for isokinetic evaluation of medial and lateral shoulder rotator. Methods Prospective study from April to May 2013 in Rennes hospital. Twenty-two healthy male volunteers from twenty to thirty years old were tested on each dynamometer in the same position (Davies position) in an aleatory order. We studied medial and lateral shoulder rotators peak torque and RL/RM ratio at 60°/s and 180°/s for each shoulder. RL/RM ratio and peak torques were first compared between dominant and non-dominant arm, then results with the two dynamometers were compared for each arm. Results There is no correlation for RL/RM ratio between the two dynamometers at each speed. There is no correction factor to adjust one ratio to another. Peak torques are statically different between the two dynamometers. Thought, on the same dynamometer, peak torques and RL/RM ratios are reproductible between dominant and non-dominant arm. Conclusion Results of isokinectic tests of shoulder are very different according to the dynamometer used. There are major differences between peak torques and RL/RM ratios. Although they are rapidly expanding, in regard of these resu...
Source: Science and Sports - Category: Sports Medicine Source Type: research