Isokinetic Testing of Muscular Function and Fatigue in Patients with Multiple Sclerosis

deficit in motor unit recruitment. Moreover, in comparison with the control group, the total work at 180 deg/sec (-55%) and the average muscular power (-45%) were significantly impaired. The higher deficit of the flexors compared with the extensors may be related to both the hypertonicity rate of the quadriceps and disturbances of reciprocal inhibition time during the alternate movement. From a morphological point of view it appears as a deficit in the muscle tension development in the initial part of the flexion curve. Our results, in contrast, do not show significant differences between the two groups in relation to endurance ratio and work recovery. This is in contrast to the increased fatigability commonly reported by MS patients. The