Effect of different repeated-high-intensity-effort bouts on subsequent running, skill performance, and neuromuscular function

Johnston, Rich D. and Gabbett, Tim J. and Jenkins, David G. and Speranza, Michael J. (2016) Effect of different repeated-high-intensity-effort bouts on subsequent running, skill performance, and neuromuscular function. International Journal of Sports Physiology and Performance, 11 (3). pp. 311-318. ISSN 1555-0265

Abstract

Purpose: To assess the impact of different repeated-high-intensity-effort (RHIE) bouts on player activity profiles, skill involvements, and neuromuscular fatigue during small-sided games. Participants: 22 semiprofessional rugby league players (age 24.0 ± 1.8 y, body mass 95.6 ± 7.4 kg). Methods: During 4 testing sessions, they performed RHIE bouts that each differed in the combination of contact and running efforts, followed by a 5-min off-side small-sided game before performing a second bout of RHIE activity and another 5-min small-sided game. Global positioning system microtechnology and video recordings provided information on activity profiles and skill involvements. A countermovement jump and a plyometric push-up assessed changes in lower- And upper-body neuromuscular function after each session. Results: After running-dominant RHIE bouts, players maintained running intensities during both games. In the contact-dominant RHIE bouts, reductions in moderate-speed activity were observed from game 1 to game 2 (ES = -0.71 to -1.06). There was also moderately lower disposal efficiency across both games after contact-dominant RHIE activity compared with running-dominant activity (ES = 0.62-1.02). Greater reductions in lower-body fatigue occurred as RHIE bouts became more running dominant (ES = -0.01 to -1.36), whereas upper-body fatigue increased as RHIE bouts became more contact dominant (ES = -0.07 to -1.55). Conclusions: Physical contact causes reductions in running intensity and the quality of skill involvements during game-based activities. In addition, the neuromuscular fatigue experienced by players is specific to the activities performed.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 30 May 2017 04:41
Last Modified: 30 May 2017 04:41
Uncontrolled Keywords: fatigue; global positioning system; movement demands; pacing; rugby league; team sport; adult; athletic performance; cross-over studies; football; geographic information systems; humans; male; muscle fatigue; muscle, skeletal; plyometric exercise; running; video recording; young adult
Fields of Research : 11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110699 Human Movement and Sports Science not elsewhere classified
Socio-Economic Objective: C Society > 92 Health > 9299 Other Health > 929999 Health not elsewhere classified
Identification Number or DOI: 10.1123/ijspp.2015-0243
URI: http://eprints.usq.edu.au/id/eprint/32260

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