Abstract
Post-activation performance enhancement remains a topic of debate in sport science. The purpose of this study was to examine the effects of lower-body plyometric conditioning activity (CA) with a self-selected intra-complex rest interval on upper and lower-body volleyball specific performance. Eleven resistance-trained female volleyball players participated in the study (age: 20 ± 2 years; body mass: 67.8 ± 4.4 kg; height: 178 ± 6 cm; half back squat one-repetition maximum: 78.6 ± 10.2 kg; experience in resistance training: 5.5 ± 2.1 years and in volleyball training: 10 ± 2.3 years). Each participant performed a plyometric CA followed by two different sport-specific tests: an attack jump and a standing spike attack. The changes in jump height (JH), relative mean power output (MP) and ball velocity (BV) were analyzed before and after the CA with self-selected rest intervals. The applied plyometric CA with self-selected intra-complex rest intervals led to an insignificant decline in JH (p = 0.594; effect size [ES]: −0.27) and MP (p = 0.328; ES: −0.46) obtained during the attack jump as well as a significant decline in BV (p = 0.029; ES: −0.72) during the standing spike attack. This study showed that a plyometric CA with self-selected intra-complex rest intervals failed to elicit localized and non-localized PAPE effect in a group of sub-elite volleyball players.
Highlights
The Wilcoxon signed-rank test showed no significant difference between BA and post-conditioning activity (CA) differences in jump height (JH) (p = 0.594) and mean power output (MP) (p = 0.328) but there was significant decrease in ball velocity (BV) following the CA in comparison to BA (p = 0.029) (Table 2)
This study showed that a plyometric CA with a self-selected intra-complex rest interval failed to elicit localized and non-localized post-activation performance enhancement (PAPE) effect in a group of sub-elite volleyball players
Results of the present investigation showed a negative trend in the attack jump, as well as a significant decrease of ball velocity during the standing spike attack
Summary
In addition to the ischemic preconditioning, acute caffeine ingestion, a post-activation performance enhancement (PAPE) is well-documented as an effective method of improving voluntary dynamic activities such as throwing, running or jumping in various athletes’ populations, i.e., track and field and team sports [7,8,9,10,11,12]. In practical terms, this method involves the complex execution of two similar exercises, with the first one being a high-intensity conditioning activity (CA), inducing PAPE, followed by an explosive movement. To shed more light on this topic, it seems important to elucidate the existence of a non-localized PAPE effect
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