Adam Grainger
Real-World Fatigue Testing in Professional Rugby Union: A Systematic Review and Meta-analysis.
Grainger, Adam; Comfort, Paul; Twist, Craig; M. Heffernan, Shane; Tarantino, Giampiero
Authors
Prof Paul Comfort P.Comfort@salford.ac.uk
Professor of Strength & Conditioning
Craig Twist
Shane M. Heffernan
Giampiero Tarantino
Abstract
Professional rugby union is a high-intensity contact sport with position-specific high training and match volumes across a season that may lead to periods of fatigue if above a typically experienced threshold. This study assesses the influence of match play and/or training on fatigue levels in rugby union players. We aimed to perform a systematic review and meta-analysis of measures used to assess fatigue status in male professional rugby union players. Using electronic databases (PubMed, SPORTDiscus, Web of Science, Cochrane Library, EMBASE, and MEDLINE), a systematic review of fatigue testing in rugby union was conducted on (1) neuromuscular, (2) subjective self-report, (3) biochemical, and (4) heart rate-derived measures. Thirty-seven articles were included in this systematic review, of which 14 were further included in a meta-analysis. The results of the meta-analysis revealed small, yet not significant, decreases in countermovement jump height immediately after (effect size [ES] = - 0.29; 95% confidence interval [CI] - 0.64 to 0.06), 24h (ES = - 0.43; 95% CI - 3.99 to 3.21), and 48h (ES = - 0.22; 95% CI - 0.47 to 0.02) after exposure to rugby union match play or training. Reported wellness (ES = - 0.33; 95% CI - 1.70 to 1.04) and tiredness (ES = - 0.14; 95% CI - 1.30 to 1.03) declined over a period of a few weeks (however, the results were not-statistically significant), meanwhile muscle soreness increased (ES = 0.91; 95% CI 0.06 to 1.75) within the 96h after the exposure to rugby union match play or training. Finally, while cortisol levels (ES = 1.87; 95% CI - 1.54 to 5.29) increased, testosterone declined (ES = - 1.54; 95% CI - 7.16 to 4.08) within the 24h after the exposure. However, these results were not statistically significant. Subjective measures of muscle soreness can be used to assess fatigue after match play and training in rugby union players. Within-study and between-study variability for countermovement jump height, biochemical markers, and heart rate-derived measures means the utility (practical application) of these measures to assess fatigue in professional rugby union players after matches and training is unclear. PROSPERO ID: CRD42020216706. [Abstract copyright: © 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.]
Citation
Grainger, A., Comfort, P., Twist, C., M. Heffernan, S., & Tarantino, G. (2023). Real-World Fatigue Testing in Professional Rugby Union: A Systematic Review and Meta-analysis. Sports Medicine, 10.1007/s40279-023-01973-3. https://doi.org/10.1007/s40279-023-01973-3
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 12, 2023 |
Online Publication Date | Dec 20, 2023 |
Publication Date | Dec 20, 2023 |
Deposit Date | Dec 24, 2023 |
Publicly Available Date | Dec 21, 2024 |
Journal | Sports Medicine |
Print ISSN | 0112-1642 |
Publisher | Springer Verlag |
Peer Reviewed | Peer Reviewed |
Pages | 10.1007/s40279-023-01973-3 |
DOI | https://doi.org/10.1007/s40279-023-01973-3 |
Files
This file is under embargo until Dec 21, 2024 due to copyright reasons.
Contact P.Comfort@salford.ac.uk to request a copy for personal use.
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