Effects of vocalization on throwing

Subjects were 15 female university track and field athletes. In an attempt to improve athletic perfor- mance,subjects were instructed to throw a medicine ball and put a shot with and without vocaliza- tion. In addition,grip strength was measured in order to clarify the effects of vocalization on throw- ing. The results showed that significant differences between with and without vocalization were observed for the standing shot put,front medicine-ball throw,and chest medicine ball throw. A signif- icant difference between with and without vocalization was observed for the grip strength of the non- dominant hand. Furthermore,among the subjects with shot put and medicine ball throwing distances shorter than the median value,there was a correlation between grip strength and distance: the greater the grip strength,the longer the throwing distance. These findings suggest that vocalizing during rou- tine practices improves athletic performance.