Passive heat maintenance after an initial warm-up improves high intensity activity during an interchange rugby league match simulation protocol.
AffiliationUniversity of Chester
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AbstractThis study examined using passive heat maintenance to maintain core temperature after a warm-up and its effect on first half running performance in rugby players. Thirteen male rugby players completed this randomized crossover study. Tympanic temperature was taken before a warm-up and then after a further 15 minutes passive recovery either with (PHM) or without (CON) a passive heat maintenance garment. Participants then completed 23 min of the rugby league match simulation protocol (RLMSP-i). Differences in tympanic temperature were unclear between CON and PHM before (35.7 ± 1.3 cf. 36.0 ± 1.1oC; ES = 0.20) and during exercise (34.5 ± 0.1 cf. 35.2 ± 0.1oC; ES = 0.26-0.35). High-intensity running (ES = 0.27) and peak sprint speed were higher (ES = 0.46-0.56) during the PHM compared to the CON trial. Time spent above 20 W.kg-1 also increased in the first quartile of PHM compared to CON trial (ES = 0.18). All other between trial comparisons of performance were unclear. HRmean (ES = 0.38) was higher in PHM compared to CON, while differences in RPEmean (ES = -0.19) were unclear. There are small to large increases in high intensity work performed during a playing bout when rugby players wear a PHM garment after a warm-up. Rugby players should consider PHM during extended periods of time between a warm-up and starting a match.
CitationFairbank, M., Highton, J., & Twist, C. (2018). Passive heat maintenance after an initial warm-up improves high intensity activity during an interchange rugby league match simulation protocol. Journal of Strength and Conditioning Research. In Press.
PublisherLippincott, Williams & Wilkins
DescriptionThis is an Accepted Manuscript of an article published by Lippincott, Williams & Wilkins in Journal of Strength and Conditioning Research on publication date TBC, available online: doi TBC
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/