Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Evaluating the Efficacy of Eccentric Half-Squats for Post-Activation Performance Enhancement in Jump Ability in Male Jumpers

Theodoros M. Kannas
,
Georgios Chalatzoglidis
ORCID logo ,
Elli Arvanitidou
,
Nicolas Babault
ORCID logo ,
Christos Paizis
* ORCID logo ,
Fotini Arabatzi
Version 1 : Received: 20 November 2023 / Approved: 22 November 2023 / Online: 22 November 2023 (03:29:39 CET)

A peer-reviewed article of this Preprint also exists.

Kannas, T.M.; Chalatzoglidis, G.; Arvanitidou, E.; Babault, N.; Paizis, C.; Arabatzi, F. Evaluating the Efficacy of Eccentric Half-Squats for Post-Activation Performance Enhancement in Jump Ability in Male Jumpers. Appl. Sci. 2024, 14, 749. Kannas, T.M.; Chalatzoglidis, G.; Arvanitidou, E.; Babault, N.; Paizis, C.; Arabatzi, F. Evaluating the Efficacy of Eccentric Half-Squats for Post-Activation Performance Enhancement in Jump Ability in Male Jumpers. Appl. Sci. 2024, 14, 749.

Abstract

The purpose of the present study was to investigate the effect of post-activation performance enhancement (PAPE) induced by eccentric half-squat exercise on vertical jump performance in male jumpers. The jumping height, peak power, and work were measured and evaluated in twenty male jumpers. Participants performed five eccentric half-squats at 85% of their one-repetition maximum (1 RM), with a knee angle below 90°, followed by immediate and 2min delayed jump assessments using Squat Jump (SJ) and Countermovement Jump (CMJ) tests. Results showed that this specific PAPE protocol did not significantly improve jump performance for both SJ and CMJ tests. Factors such as stimulus specificity, rest intervals, muscle length, and the balance between potentiation and fatigue may explain these results. The study highlights the complexity of PAPE responses and suggests that a single set of eccentric squats with a short rest may not improve jump performance in male jumpers. Further research is required to optimize the interplay between conditioning stimulus and rest periods to maximize PAPE effects in athletic performance enhancement.

Keywords

post-activation performance enhancement; eccentric half-squat; squat jump; countermovement jump; jumping height; rest

Subject

Biology and Life Sciences, Anatomy and Physiology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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