Influence of physical qualities on post-match fatigue in rugby league players
Article
Article Title | Influence of physical qualities on post-match fatigue in rugby league players |
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ERA Journal ID | 9776 |
Article Category | Article |
Authors | Johnston, Rich D. (Author), Gabbett, Tim J. (Author), Jenkins, David G. (Author) and Hulin, Billy T. (Author) |
Journal Title | Journal of Science and Medicine in Sport |
Journal Citation | 18 (2), pp. 209-213 |
Number of Pages | 5 |
Year | 2015 |
Publisher | Elsevier |
Place of Publication | Australia |
ISSN | 1440-2440 |
1878-1861 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jsams.2014.01.009 |
Web Address (URL) | http://ac.els-cdn.com/S1440244015001425/1-s2.0-S1440244015001425-main.pdf?_tid=0c775d6a-3c4e-11e7-985a-00000aab0f26&acdnat=1495169338_ca7c088dcd8ee430e642a7237dbf0d00 |
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. |
Keywords | CK; muscle damage; muscular strength; neuromuscular fatigue; team sports; yo-yo; adolescent; creatine kinase; football; humans; male; muscle fatigue; muscle strength; running; young adult; physiology; clinical and experimental biochemistry |
ANZSRC Field of Research 2020 | 429999. Other health sciences not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Australian Catholic University |
University of Queensland | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q43q5/influence-of-physical-qualities-on-post-match-fatigue-in-rugby-league-players
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