( P ≤ .016) (Figure 1 ). There was an impairment-specific interaction as RUN Δ , changes in T c T2–RUN mid , and RUN mid –RUN end were significantly greater for PTVI than PTWC ( P ≤ .021) (Table 2 ). Figure 1 —Whole-group core temperature changes throughout the race. Dots are individual data
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High Thermoregulatory Strain During Competitive Paratriathlon Racing in the Heat
Ben T. Stephenson, Sven P. Hoekstra, Keith Tolfrey, and Victoria L. Goosey-Tolfrey
Contribution of American Football Uniforms to the Development of Exercise-Induced Hyperthermia: A Critically Appraised Topic
Grace Katt and Kevin C. Miller
Exertional heat stroke (EHS) is the most severe form of exertional heat illness (EHI) and is diagnosed when an athlete’s body’s core temperature exceeds 40.5 °C (105 °F) and they display central nervous system dysfunction. 1 EHS is one of the leading causes of sudden death in athletes. 2 In
Does Gender Affect Rectal Temperature Cooling Rates? A Critically Appraised Topic
Kayla E. Boehm and Kevin C. Miller
core temperature was measured with T rec since this is the only valid, clinically useful body temperature site for an exercising human. 6 • Limited to studies published in English in the last 15 years (1993–2018). • Limited to studies classified as Oxford Centre for Evidence-Based Medicine level 3 or
Intensified Training Supersedes the Impact of Heat and/or Altitude for Increasing Performance in Elite Rugby Union Players
Sebastien Racinais, Julien D. Périard, Julien Piscione, Pitre C. Bourdon, Scott Cocking, Mohammed Ihsan, Mathieu Lacome, David Nichols, Nathan Townsend, Gavin Travers, Mathew G. Wilson, and Olivier Girard
work with team-sport players, 3 , 5 it consisted of cycling for 30 minutes at a constant work rate (corresponding to 65% of V ˙ O 2 max ) at 40°C and 50% relative humidity (RH). As with similar HRT, 3 core temperature was monitored using e-Celsius temperature capsules (BodyCap, Caen, France) self
Sports Dietitians Australia Position Statement: Nutrition for Exercise in Hot Environments
Alan J. McCubbin, Bethanie A. Allanson, Joanne N. Caldwell Odgers, Michelle M. Cort, Ricardo J.S. Costa, Gregory R. Cox, Siobhan T. Crawshay, Ben Desbrow, Eliza G. Freney, Stephanie K. Gaskell, David Hughes, Chris Irwin, Ollie Jay, Benita J. Lalor, Megan L.R. Ross, Gregory Shaw, Julien D. Périard, and Louise M. Burke
constant information about the thermal status of the body ( Morrison, 2011 ). Elevations in core temperature of >0.2 °C can elicit cutaneous vasodilation, directing a greater volume of blood toward the skin to redistribute heat content and increase convective and radiative heat loss as skin temperature
Risk Factors and Predictors of Hypothermia and Dropouts During Open-Water Swimming Competitions
Joffrey Drigny, Marine Rolland, Robin Pla, Christophe Chesneau, Tess Lebreton, Benjamin Marais, Pierre Outin, Sébastien Moussay, Sébastien Racinais, and Benoit Mauvieux
to changes in their body temperature. 1 , 2 The maintenance of core temperature ( T core ) while swimming depends on the balance between heat production (related to exercise intensity) and dissipation. However, heat dissipation mechanisms during swimming differ from that in land sports as water has
Effect of Body Composition on Physiological Responses to Cold-Water Immersion and the Recovery of Exercise Performance
Jessica M. Stephens, Shona L. Halson, Joanna Miller, Gary J. Slater, Dale W. Chapman, and Christopher D. Askew
and composition. 9 , 13 Indeed, there is an inverse relationship between body fat and the rate of tissue cooling. 14 This is likely due to the low conductivity of body fat, which has an insulating effect that impedes decrements in core temperature. 9 , 15 The ratio of body surface area to mass (BSA
The Effect of a Synthetic-Grass Sport Surface on Physiology and Perception During Intermittent Exercise in Hot Conditions
Gurpreet Singh, Kyle J.M. Bennett, Hannah McGuigan, Scott G. Goddard, and Christopher J. Stevens
) Individual athlete responses for mean core body temperature at each time point (dots) and 95% CIs for the mean core temperature at each time point (horizontal lines). There was no significant interaction effect for core body temperature ( P = .49), heart rate ( P = .55), and RPE ( P = .32) between the surface and
Optimizing Heat Acclimation for Endurance Athletes: High- Versus Low-Intensity Training
Cyril Schmit, Rob Duffield, Christophe Hausswirth, Jeanick Brisswalter, and Yann Le Meur
·d −1 ), Houmard et al 6 reported similar reductions in heart rate (HR), core temperature (T core ), and caloric expenditure of exercise, though performance outcomes were not reported. More recently, Wingfield et al 7 noticed larger decreases in HR and T core and greater performance benefits (−5
Heat Preparation and Knowledge at the World Athletics Race Walking Team Championships Muscat 2022
Natalia Galan-Lopez, Chris J. Esh, Diogo Vaz Leal, Silvia Gandini, Ronan Lucas, Frederic Garrandes, Stephane Bermon, Paolo Emilio Adami, Alma Kajeniene, Yuri Hosokawa, Bryna Catherine Rose Chrismas, Christopher J. Stevens, and Lee Taylor
.0 — — 1 33.3 1 10.0 2 15.4 Abbreviations: %, percentage of cases in that group/category; HA, heat acclimation/acclimatization; n, number of times option selected; Tc, core temperature. Note: “n” split into sex and climate to determine whether differences exist. a Reference variable. b Midday training
