Performance monitoring during isotonic leg training and analysis of movement

Abstract

To evaluate improvements during leg training on an isotonic leg extension system, we analyzed the modality of exercise performance by building power-angle curves for each leg. Ten subjects underwent a two-month training protocol on a leg extension device. Maximal theoretical forces were evaluated to set the protocols for each subject. Each training session was monitored in real time by the acquisition of angles and building power-angle curves for each leg during sub-maximal exercise. Maximal theoretical strength, maximal speed values and slopes between the first and last training sessions differed significantly (p<0.001). Constant monitoring of exercise performance allows physical training efficiency to be improved over time. Adequate training exercises can be devised by prompt analysis of movement by power-angle curves. The isotonic test for monitoring performance is a good solution directly correlated to isokinetic methodology.