Journal article
Influence of physical qualities on post-match fatigue in rugby league players
Journal of Science and Medicine in Sport, Vol.18(2), pp.209-213
2015
PMID: 24594214
Abstract
Objectives:
This study examined the influence of physical qualities on markers of fatigue and muscle damage following rugby league match-play.
Design:
Between subjects design.
Methods:
Twenty-one male youth rugby league players (age 19.2 ± 0.7 years; height 180.7 ± 5.6 cm; body mass 89.9 ± 10.0 kg) participated in the study. Yo-Yo intermittent recovery test (level 1), 3 repetition maximum back squat and bench press were assessed prior to 2 competitive fixtures. Neuromuscular fatigue (countermovement jump [CMJ] and plyometric push-up [PP]), and blood creatine kinase (CK) were assessed before and after match-play. During match-play, movements were recorded using microtechnology. Players were divided into high- and low-groups based on physical qualities.
Results:
High Yo-Yo and squat performance resulted in greater loads during match-play (p < 0.05). There were larger reductions in CMJ power in the low Yo-Yo group at both 24 (ES = −1.83), and 48 h post-match (ES = −1.33). Despite greater internal and external match loads, changes in CMJ power were similar between squat groups. There were larger increases in blood CK in the low Yo-Yo group at 24 (73% vs. 176%; ES = 1.50) and 48 h post-match (28% vs. 80%; ES = 1.22). Despite greater contact loads, the high squat group exhibited smaller changes in blood CK post-match (ES = 0.25–0.39).
Conclusions:
Post-match fatigue is lower in players with well-developed high-intensity running ability, and lower body strength, despite these players having greater internal and external match loads.
Details
- Title
- Influence of physical qualities on post-match fatigue in rugby league players
- Authors
- Rich D Johnston (Author) - Australian Catholic UniversityTim J Gabbett (Author) - Australian Catholic UniversityDavid G Jenkins (Author) - University of QueenslandBilly T Hulin (Author) - Australian Catholic University
- Publication details
- Journal of Science and Medicine in Sport, Vol.18(2), pp.209-213
- Publisher
- Elsevier Australia
- DOI
- 10.1016/j.jsams.2014.01.009
- ISSN
- 1878-1861
- PMID
- 24594214
- Organisation Unit
- School of Health and Behavioural Sciences - Legacy; School of Health and Sport Sciences - Legacy; University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99488707102621
- Output Type
- Journal article
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- Domestic collaboration
- Web Of Science research areas
- Sport Sciences
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