Comparative effect of isotonic and isokinetic exercises on strengthening of injured knee ligament
Author(s): Aparna Rathi, Deepak Sharma and Pankaj Singh
Abstract: The purpose of the study was to compare the effects of Isokinetic and isotonic exercises on strengthening of injured knee ligaments. For the study, 20 female athletes were purposively selected, who had suffered knee ligament injury and are in the rehabilitation phase, from Lakshmibai National Institute of Physical Education, Gwalior. Two equal groups were made out of the total 20 subjects – Group A (Isotonic Exercise Group) and Group B (Isokinetic Exercise Group). Both the groups were given training three days a week for 6 weeks on CSMI HUMAC NORM Isokinetic Machine. Using Pre-post design, data was collected on CSMI HUMAC NORM Isokinetic Machine as peak torque. Data was analyzed using IBM SPSS (version 20.0.0). Analysis of Co-variance (ANCOVA) was used as the statistical technique by taking pre-test as the covariate. The results of the study showed that there was significant improvement in peak torque values of injured knee ligaments in both experimental groups. But based on the mean difference, isokinetic exercise group performed better in post-test than isokinetic exercise group. So it is concluded that Isokinetic exercises are better for strengthening than isotonic exercises.