Joshua Guy, FSHS Seminar, 26.05.15

Faculty of Sport & Health Sciences Seminar Series
Joshua Guy, University of St Mark & St John/James Cook University
Tuesday 26th May at 10am
Exercise in hot environments: Athlete preparation, performance, and the implications of
Extreme environmental conditions present athletes with diverse challenges; however, not
all sporting events are limited by thermoregulatory parameters. The classical
thermoregulatory model of heat stress has been well characterized, as has a wide range of
practical strategies largely centred on cooling and heat-acclimation training. As elite athlete
performance during endurance events held in hot conditions is compromised, it is likely that
endurance athlete would benefit from heat acclimation training. However, it is important to
address both the performance aspects associated with heat acclimation training, as well as
the complex interplay between hyperthermia, the coagulation cascade, and the systemic
inflammatory response that occurs after transient damage to the gastrointestinal tract.
Practical strategies that target both thermoregulatory and inflammatory causes of heat
stress include precooling; heat acclimation training; nutritional countermeasures including
hydration, energy replacement, and probiotic supplementation; pacing strategies during
events; and post-event cooling measures. As high-performance athletes are often timepoor, shorter duration heat acclimation protocols may be of practical preference for
endurance athletes where satisfactory outcomes can be achieved. Although novel recovery
techniques applied between subsequent heat exposures may accelerate adaptation and
reduce inflammation.
Joshua Guy completed a bachelor of Sport and Exercise Science (Hons 1) at James Cook
University (Cairns, Australia) in 2012. Since undertaking his PhD his research has focused on
heat training programmes designed to best prepare athletes for competition in hot and
humid environments, as well as the inflammatory response associated with this. He has
recently joined St Mark and St John to work as a Graduate Research Assistant as well as
complete the final study of his PhD.