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EFFECTS OF POSTACTIVATION POTENTIATION ON VERTICAL JUMP AND BROAD JUMP PERFORMANCE AFTER BULGARIAN SPLIT SQUATS

Abstract

E. Bernstein,C. Bush, L. Reardon, S. Udac, W.M. Silvers

Whitworth University, Spokane, WA

Researchers have previously investigated the effect of the Bulgarian split squat (BSS) on post-activation potentiation (PAP) effects on vertical displacement, such as vertical jump (VJ), and peak power (PP). Researchers suggested the BSS has shown proper mechanics and muscle activation for improved horizontal displacement, such as in a broad jump (BJ). PURPOSE: The purpose of this study was to investigate the effects of the BSS protocol as a PAP stimulus on PP, VJ, and BJ performance compared to a dynamic warm-up. METHODS: Twenty-seven moderately active individuals (18-23 yr) participated in both an intervention session (E) with a BSS warm-up protocol and a control session (C) with a standardized warm-up, prior to VJ, BJ, and PP testing. Wilcoxon signed rank tests (p≤ 0.05) were utilized to inferentially compare conditions for all dependent variables. RESULTS: No significant differences were found for any of the dependent variables between the control and experimental session (p= 0.727 - 0.979; see Table 1). CONCLUSION: The BSS protocol did not elicit a PAP effect that was different from the control scenario for VJ, BJ, or PP under the examined research conditions. This may have been due to the fact that both warm-up protocols consisted of active, dynamic exercises among other factors. Perhaps a higher intensity BSS protocol would have been better. Also, relatively small sample population size (n = 27) and observed effect size (d = 0.0036) attributed to statistical insignificance. Future research recommendations include a study that negates the PAP effects from a dynamic warm prior to testing, in order to better evaluate the effects of a BSS protocol.

Additional Files
Table 1.docx (12 kB)

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