Post-warmup strategies to maintain body temperature and physical performance in professional rugby union players.
We compared the effects of using passive-heat maintenance, explosive activity or a combination of both strategies during the post-warmup recovery time on physical performance. After a standardised warmup, 16 professional rugby union players, in a randomised design, completed a counter-movement jump (peak power output) before resting for 20 min and wearing normal-training attire (CON), wearing a passive heat maintenance (PHM) jacket, wearing normal attire and performing 3 × 5 CMJ (with a 20% body mass load) after 12 min of recovery (neuromuscular function, NMF), or combining PHM and NMF (COMB). After 20 min, participants completed further counter-movement jump and a repeated sprint protocol. Core temperature (Tcore) was measured at baseline, post-warmup and post-20 min. After 20 min of recovery, Tcore was significantly lower under CON and NMF, when compared with both PHM and COMB (P < 0.05); PHM and COMB were similar. Peak power output had declined from post-warmup under all conditions (P < 0.001); however, the drop was less in COMB versus all other conditions (P < 0.05). Repeated sprint performance was significantly better under COMB when compared to all other conditions. Combining PHM with NMF priming attenuates the post-warmup decline in Tcore and can positively influence physical performance in professional rugby union players.
a Department of Sport, Exercise & Rehabilitation, Faculty of Health and Life Science, Northumberland Building , Northumbria University , Newcastle upon Tyne NE1 8ST , UK.
Daniel J
DJ
West
a Department of Sport, Exercise & Rehabilitation, Faculty of Health and Life Science, Northumberland Building , Northumbria University , Newcastle upon Tyne NE1 8ST , UK.
Mark
M
Russell
b Applied Sports Technology Exercise and Medicine Research Centre (A-STEM), Health and Sport Portfolio, Talbot Building, College of Engineering , Swansea University , Swansea SA2 8PP , UK.
Richard M
RM
Bracken
c School of Sport, Health and Exercise Sciences , Bangor University , Bangor , UK.
Christian J
CJ
Cook
d Biarritz Olympique Rugby , Parc Des Sports Aguilera , Biarritz , France.
Tibault
T
Giroud
b Applied Sports Technology Exercise and Medicine Research Centre (A-STEM), Health and Sport Portfolio, Talbot Building, College of Engineering , Swansea University , Swansea SA2 8PP , UK.|d Biarritz Olympique Rugby , Parc Des Sports Aguilera , Biarritz , France.
Liam P
LP
Kilduff
D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D001833:Body Temperature Regulation; D003020:Clothing; D006801:Humans; D008297:Male; D012916:Soccer / Q000502:physiology*; D063996:Warm-Up Exercise / Q000502:physiology*
core temperature; neuromuscular function; passive heat maintenance; priming