The effects of isokinetic weight training at two speeds upon the vertical jump.

Abstract

THE EFFECTS OF ISOKINETIC WEIGHT TRAINING AT TWO SPEEDS UPON THE VERTICAL JUMP Terry D. Somers PURPOSE: It was the purpose of this study to determine if any advantage existed in altering the speed of repetition in a particular resistance exercise in order to improve skill performance scores. PROBLEM: Will a slow speed of isokinetic training be more effective than a contrasting faster speed of similar training in significantly increasing vertical jumping performance scores of high school age males and females. PROCEDURE: The sixty subjects used in this study were divided into three different groups: control group, slow speed training group and fast speed training group. Each group was pre-tested and then post-tested after a six week training period in the vertical jump. The comparative difference between initial and final test scores were statistically analyzed. The statistical method used was the analysis of variance and Dunnett's 1-test at the .05 level of significance. RESULTS: There was no significant difference in improvement of vertical jump performance scores.