The Effects Of Equal Volume Isotonic And Isokinetic Knee Extensors Training On Strength Gains

Purpose: The aim of this study was to compare the effects of equal volume isotonic and isokinetic training on muscle strength measured by an isokinetic dynamometer in physically active healthy men.Methods: Kinesiology students (n=150; aged 19.6 +/- 1.38 years) were divided into 3 groups. During an eight-week procedure experimental groups 1 and 2 had isotonic (EX 1) and isokinetic (EX 2) knee extensors training. Overall training volume was expressed by the number of sets (3) and repetitions (5-15). Changes between the initial and final measurements in each group were analyzed using paired samples T-test whilst the effects size difference was determined using ANOVA.Results: Statistically significant difference occurred in both experimental groups. Gains in individual groups differed at non-dominant leg.Conclusion: 8-week isokinetic strength training results in larger strength gains than equal volume isotonic training in healthy physically active male population. We can encourage practitioners to utilize isokinetic dynamometry in early phase of strength training for greater strength gains.