Farklı Ön Yüklemeli Pliometrik Egzersizlerle Uygulanan Aktivasyon Sonrası Potansiyasyonun Sürat Performansına Etkisi

Abstract

SÖNMEZ, Ç. The Effect of Post Activation Potentiation Applied with Different Preloaded Plyometric Exercises on Sprint Performance. Hacettepe University, Graduate School of Health Sciences, M.Sc. Thesis in Sport Sciences and Technology, 2020, Ankara. This study was conducted to investigate the effect of post activation potentiation (PAP) applied with different preloaded plyometric exercises on sprint performance.. 22 male athletes from various branches of team and individual sports voluntarily participated in this study. Before each PAP application, participants performed 30 m sprint test to determine the baseline sprint performance as a reference measurement. After that participants performed a single set (1x10) or multiple sets (3x10) of tuck jump as a preconditioning application in random order, and then, at 15th sec, 2nd, 4th, 8th, 12th and 16th min, they participated in 30 m sprint test with 10 m splits. During the 30 m test, 10 m, flying 10 m, 20 m, flying 20 m and 30 m sprint times were measured. A 2x7 (set x time) two-way analysis of variance (ANOVA) with repeated measures was used for statistical analysis and and when the F statistics was significant, Bonferroni post hoc analysis was performed to determine the source of difference. In addition, to determine the effect of single set and multi sets of PAP application on sprint performance at individual level the Smallest Real Difference values were calculated. In 10 m sprint performance set and time effect and set x time interaction were significant (p>0,05). For flying 10 m sprint performance, set effect and set x time interaction were not significant (p>0,05) while significant time effect was found (p<0,05). Results of Bonferroni analysis showed that this difference was due to faster baseline flying 10 m sprint times compared to 15th sec and 8th, 12th and 16th min sprint times. For 20 m sprint performance, it was seen that no significant set and time effect and set x time interaction was found (p>0,05). In flying 20 m sprint performance on the other hand, set and time effect and set x time interaction were found to be statistically significant (p<0,05). In terms of set effect, it was found that multiple sets of tuck jump application, resulted in more decrease in sprint times in flying 20 m sprint performance compared to single set application. For time effect, the difference was resulted from the performance decrease in all times except 15th sec, compared to baseline performance (p<0,05). Significant set x time interaction on the other hand, was resulted from the slower performance at 4th min following multiple sets of tuck jump application compared to single set (p<0,05). For 30 m sprint performance, the time effect was statistically significant (p<0,05) while the set effect and set x time interaction was not significant (p>0,05). Bonferonni post hoc analysis showed that significant interaction was as a result of 15th sec sprint time being slower than the baseline performance (p<0,05). When individual responses were examined for all distances, it was determined that for majority of participants there was no PAP effect after single-set or multiple-sets of tuck jump application. In addition, it was determined that in 20 m sprint test, the sprint performance of all participants increased at 15th sec and during the flying 20 m sprint test, the sprint performance of all participants was decreased at 4th min after multiple sets of tuck jump application. As a conclusion, the results of this study showed that different preloaded plyometric exercises (single set and multiple sets) did not cause any difference in sprint performance in all distances except flying 20 m sprint performance. In addition, it was concluded that PAP effect of single set or multiple sets of plyometric exercises on sprint performance was individual. Key Words: Post Activation Potentiation, Plyometric Exercise,Speed