Effects of treatment dosage of whole-body cryotherapy upon post-match recovery of endocrine and biochemical markers in elite rugby league players: An experimental study
Naylor AS, Edwards BJ, Robertson CM
Health science reports · 5 citations
How it was studied
- Design
- Controlled clinical trial (classified by our AI screen)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Independent funding
Based on full-text disclosure statement.
Publication
- Published
- 2023-04-01 · Health Sci Rep · vol. 6 · issue 4 · p. e1227
- Publisher
- Wiley
- Cited
- 8 citations · more than 73% of similar papers · 0.8× the field average
- References
- 31 works
- Access
- Open access (journal) · CC-BY
- Research areas
- Exercise and Physiological Responses · Muscle metabolism and nutrition · Sports Performance and Training
- Keywords
- Testosterone (patch), Endocrine system, Creatine kinase, Medicine, Anabolism, Athletes, Internal medicine, Sprint, League, Placebo, Endocrinology, Hormone, Physical therapy, Pathology
3 authors
From GB
- Adam S. Naylor · correspondingEdge Hill University
- Ben EdwardsLiverpool John Moores University
- Colin M. Robertson
Abstract
Background and aims
The use of whole-body cryotherapy (WBC) for athletic recovery is becoming increasingly popular despite the lack of evidence supporting the dosage parameters in its implementation. The aim of the current study was to investigate the dose-response effects of WBC following match-play in elite rugby league players.
Methods
We observed endocrine (salivary cortisol and testosterone) and biochemical (creatine kinase) responses following three separate post-match recovery periods in elite rugby league players. Comparisons were made between a single exposure (3 min at -120°C to --135°C) of WBC to two consecutive exposures (2 × 3 min), to a control (no exposure) during the recovery trials. Recovery characteristics were measured 36 h prematch, immediately postmatch, and 60 h postmatch.
Results
Cortisol concentrations remained unchanged in its pattern of response during the postmatch recovery periods across all WBC doses. Testosterone concentrations increased significantly (p p < 0.0005) at 60 h in the WBC2 trial, while during the WBC0 trial it did not recover to baseline levels. No significant effect on creatine kinase concentration was observed, although a statistical trend was shown in WBC2 for improved reduction of this marker at 60 h.
Conclusions
These findings suggest that two, consecutive exposures to WBC immediately following fatiguing rugby league competition appear to stimulate an increase to the anabolic endocrine profile of participants by 60 h post-match, and may reduce the CK concentration. Coaches and athletes should consider the treatment dosage of WBC when used to optimize the desired response following a high-stress environment.
Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).
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