Postactivation potentiation following different modes of exercise

Esformes, Joseph I. and Cameron, Neil and Bampouras, Theodoros M. (2010) Postactivation potentiation following different modes of exercise. Journal of Strength and Conditioning Research, 24 (7). pp. 1911-1916. ISSN 1064-8011

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Abstract

The performance characteristics of skeletal muscle are transient in nature and have been shown to be significantly affected by its contractile history, where the phenomenon of acute enhancement is termed postactivation potentiation (PAP). Acute enhancement of dynamic activity has been observed when preceded by resistance exercises; however little information exists for plyometric activity as a conditioning stimulus. In addition, no study has examined PAP effects on more than one subsequent performance trial. The purpose of the present study was to determine whether countermovement jump (CMJ) performance could be enhanced if preceded by heavyresistance exercise or by dynamic plyometric activity over 3 trials. Thirteen anaerobically trained male subjects (mean ± SD: age, 22 ± 3 years; height, 182.4 ± 4.3 cm; body mass, 82.7 ± 9.2 kg) performed in a counterbalanced order 3 half squats using a 3 repetition maximum loading (SQUAT), a set of 24 contacts of lower body plyometric exercises (PLYO), or a control of no activity (REST) 5 minutes before each CMJ. Three sets of each treatment and CMJ were performed in total and maximal displacement (dmax), peak power (Ppeak), and peak vertical force (Fpeak) were recorded, whereas rate of force development and relative force (F/body mass) were calculated for every trial. No significant differences were revealed for any of the other variables, but greater displacement was found for SQUAT compared to REST or PLYO, whereas no differences were revealed for any of the conditions for the repeated trials. Although heavy resistance-induced PAP seems to enhance jump height compared to REST or PLYO in repeated CMJ performance, it has no additional benefit on repeated trials.

Item Type: Journal Article
Journal or Publication Title: Journal of Strength and Conditioning Research
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3600/3612
Subjects:
Departments: Faculty of Health and Medicine > Medicine
ID Code: 128463
Deposited By: ep_importer_pure
Deposited On: 22 Oct 2018 12:28
Refereed?: Yes
Published?: Published
Last Modified: 30 Sep 2019 21:20
URI: https://eprints.lancs.ac.uk/id/eprint/128463

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