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Effects of concurrent activation potentiation on countermovement jump performance

  • Michael Mullane
    ,
  • Sean Maloney
    ,
  • Shyam Chavda
    ,
  • Steven Williams
    ,
  • Anthony Turner
  • Middlesex University
Research Output: Contribution to journal Article Peer-review

Open access

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 4 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 4 conditions. Effect size (ES) comparisons suggest a potential for CMJ with fist and jaw contraction (BOTH condition) to augment both PF (2.4%; ES: 0.62) and RFD (9.9%; ES: 0.94) over a normal CMJ (NORM condition). It is concluded that CAP by singular and combined contractions has no significant impact on CMJ performance; however, substantial interindividual variation in response to CAP was observed, and such techniques may therefore warrant consideration on an individual basis.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 3311-3316

Journal (Volume, Issue Number)

Journal of Strength and Conditioning Research (Volume 29, Issue 12)

Publication milestones

  • Published - 31/12/2015

Publication status

Published - 31/12/2015

ISSN

1064-8011

External Publication IDs

  • handle.net: 10547/625028
  • Scopus: 84949222261

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