Normative isokinetic data on the ankle invertors and evertors

To develop Australian normative data for ankle invertors and evertors, forty subjects aged between eighteen and thirty-four years were tested using Cybex II. Issues examined were the relationships between body weight and peak torque, peak torque values of evertors/invertors at specific velocities, and body weight and endurance. Mean absolute peak torque values at specific velocities and percentage changes in endurance performance at 120°/sec were established. Results showed a significant correlation between body weight and absolute peak torque. Sex had a significant effect on these values. The ratio evertors/invertors had significant linearity with the test velocities indicating a constant ratio of these muscles, irrespective of velocity. No significant relationship was found between body weight and endurance.