Reliability of isokinetic measures

Abstract

Isokinetic resistance is frequently used to strength profile healthy athletes and to evaluate the status of injured athletes involved in rehabilitation programs. The purpose of this investigation was to determine the reliability of peak torque, torque acceleration energy, endurance ratio, average power, and total work measures obtained with a Cybex isokinetic dynamometer. Fifteen college students underwent a test - retest procedure for right and left knee flexion and extension, shoulder flexion and extension, and shoulder internal and external rotation. Highest reliability coefficients were found for peak torque, torque acceleration energy, average power, and total work measures. Lower coefficients were observed for the endurance ratio measure. Higher reliability was generally observed for the knee extension/ flexion test procedure than for the shoulder tests.