Objectives: To determine the value of isokinetic dynamometric measurement of passive resistance in quantifying spasticity. Setting: Turkey. Methods: Thirty-three spastic spinal cord-injured patients and 14 age-matched normal individuals were studied. Five consecutive¯exion-extensions of the knee, abductionadductions of the hip, and dorsal-plantar¯exions of the ankle were performed at speci®c velocities (15, 30, 60, 90 and 1208/s) using a computerized isokinetic dynamometer set at the continuous passive motion mode. We recorded maximum torque and the sum of torque amplitudes for ®ve repetitions of each type of joint motion at all velocities. Results: Maximum torque values and the sum of torque amplitudes were both signi®cantly higher in spastic patients than in controls, and there was a positive correlation between torque values and Ashworth scores. There was no signi®cant linear increase in torque values associated with increasing velocity for any of the motions in either controls or patients. Conclusion: Isokinetic dynamometric measurement of passive resistance appeared to be a valuable tool for assessing and quantifying spasticity, as well as other types of hypertonus.
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