Effects of concurrent activation potentiation on countermovement jump performance

Mullane, Michael, Maloney, Sean J., Chavda, Shyam, Williams, Steve and Turner, Anthony N. (2015) Effects of concurrent activation potentiation on countermovement jump performance. Journal of Strength & Conditioning Research, 29 (12). pp. 3311-3316. ISSN 1064-8011

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Abstract

The purpose of this study was to assess the effects of concurrent activation potentiation (CAP) on countermovement jump (CMJ) performance. Twenty-four resistance trained males (mean ± SD, age 25 ± 4 years; body mass: 78.7 ± 10.3 kg) performed a CMJ on a force plate under four different conditions: a) a control condition where the CMJ was performed with hands on hips and lips pursed, thus preventing jaw or fist contraction from occurring, b) a jaw condition where the CMJ was performed with maximal contraction of the jaw, c) a fist condition where the CMJ was performed with maximal contraction of the fists, and d) a combined condition where the CMJ was performed with maximal contraction of both jaw and fists. Jump height (JH), peak force (PF), rate of force development (RFD) and time to peak force (TTPF) were calculated from the vertical force trace. There was no significant difference in PF (P = 0.88), TTPF (P = 0.96), JH (P = 0.45), or RFD (P = 0.06) between the four conditions. Effect size (ES) comparisons suggests a potential for the BOTH condition to augment both PF (2.4%; ES: 0.62) and RFD (9.9%; ES: 0.94) over NORM. It is concluded that CAP via singular and combined contractions has no significant impact on CMJ performance, however, substantial inter-individual variation in the response to CAP was observed and such techniques may therefore warrant consideration on an individual basis.

Item Type: Article
Research Areas: A. > School of Science and Technology > London Sport Institute > Strength and Conditioning at the London Sport Institute
Item ID: 16243
Notes on copyright: This is a non-final version of an article published in final form in Mullane, M. D., Maloney, S. J., Chavda, S., Williams, S., & Turner, A. N. (2015). Effects of Concurrent Activation Potentiation on Countermovement Jump Performance. Journal of Strength and Conditioning Research, 29(12), 3311–3316. doi:10.1519/jsc.0000000000001010
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Depositing User: Anthony Turner
Date Deposited: 22 May 2015 10:16
Last Modified: 02 Apr 2019 15:02
URI: https://eprints.mdx.ac.uk/id/eprint/16243

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