Cited by 78Sports Performance and TrainingThermoregulation and physiological responsesCardiovascular and exercise physiology

The influence of passive heat maintenance on lower body power output and repeated sprint performance in professional rugby league players

Kilduff, Liam P., West, Daniel J., Williams, Natalie, Cook, Christian J.·2013·Journal of Science and Medicine in Sport

Abstract

Objectives The pre-competition warm-up mediates many temperature related physiological changes which generally lead to an improvement in performance. However, after ceasing exercise body temperature declines rapidly, which reduces some of the benefits of the initial warm-up. We examined the effects of a passive heat maintenance strategy on post-warm-up core temperature (Tcore) and performance in professional rugby league players.Design Twenty professional rugby league players completed this randomised and counter-balanced study.Methods After a standardised warm-up, players completed a countermovement jump (CMJ) before resting for 15min wearing normal training attire (control) or wearing a passive heat maintenance jacket (PHM), players then completed another CMJ and a repeated sprint protocol (RSA). Tcore was measured at baseline, post-warm-up, pre-RSA and post-RSA. CMJ were analysed for peak power output (PPO), and RSA for fastest, mean and total sprint time.Results Post-warm-up Tcore (mean±SD; control 37.70±0.28; PHM 37.70±0.27°C; p=0.741) and PPO (control 5220±353 vs. PHM 5213±331W; p=0.686) were similar between conditions. At pre-RSA, PHM was associated with greater Tcore (control 37.14±0.31 vs. PHM 37.51±0.30°C; p<0.001) and PPO (control 4868±345 vs. PHM 5056±344W; p<0.001) when compared to control. The decline in PPO from post-warm-up to pre-RSA was related to the drop in Tcore (r=0.71; p<0.001). During the RSA, fastest, mean and total sprint time were all improved under PHM compared to control (p<0.05).Conclusions Passive heat maintenance is an effective method of attenuating the post-warm-up decline in Tcore and improves PPO and repeated sprint ability in professional rugby league players.

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Crossref · 10.1016/j.jsams.2012.11.889

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Authors
Kilduff, L. P., West, D. J., Williams, N., & Cook, C. J.
Affiliations
  • Swansea University (GB)
  • Northumbria University (GB)
Corresponding author
Kilduff, Liam P.
Venue
Journal of Science and Medicine in Sport
Publisher
Elsevier BV
Published
2013-09
Volume
16
Issue
5
Pages
482-486
ISSN
1440-2440 (ISSN-L)
OpenAlex
W2014159973
Cited by
78
References
27
Citations by year
2026: 5 · 2025: 7 · 2024: 5 · 2023: 4 · 2022: 11 · 2021: 2 · 2020: 8 · 2019: 8 · 2018: 6 · 2017: 4 · 2016: 3 · 2015: 7 · 2014: 5 · 2013: 3
FWCI
5.14
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of science and medicine in sport (publishedVersion)
  • PubMed (publishedVersion)
  • Northumbria Research Link (Northumbria University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
core body temperature, repeated sprint performance, countermovement jump, peak power, rugby league players, warm-up, lower body power
MeSH terms
Adult, Football, Humans, Male, Lower Extremity, Athletic Performance, Young Adult, Warm-Up Exercise

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