Sports med. Sports med. Thermal and biomechanical responses of amateur, elite and world cup athletes during a world cup sprint triathlon in the heat James Carl Múñiz-Pardos Borja Universidad de Zaragoza Ihsan Mohammed Lo Ka-Kay Lam Wing-Kai Iglesias Dani Peña Angeloudis Konstantinos Teng Yi Jiao Jiao Hu Ke Wong KaKi Guppy Fergus Racinais Sébastien Chalmers Samuel Migliorini Sergio Wu Kenneth Pitsiladis Yannis 2025 research-article