摘要：This study focused on the effect of a 6week isotonic training period on lower body muscle EMG changes in university volleyball players. Thus, 15 players of a university's volleyball team with an average age of 18.4–23.7, height of 178.7–194.3 centimetres, and weight of 65.3–83.5kg were chosen. The subjects participated in four weekly 45–60 minute training sessions in a 6week period. Before and after 6week period the EMG for the biceps femoris and gracilis were checked. A paired t-test with α=0.05 was used. The results revealed that 6weeks of isotonic training had a significant effect (p <0.05) on the EMG of the biceps femoris while performing the Squat Movement but the EMG for the biceps femoris was insignificant (p >0.05) in the vertical jump. According to the results, isotonic training can increase the EMG of lower body mscles in athletes.
