Influence of body temperatures and hypercapnia on pulmonary ventilation during hyperthermia

Static and dynamic body temperatures, hypercapnia, and exercise state were assessed for their influence on human pulmonary ventilation. METHODS: In study 1, each participant exercised with normothermic and hyperthermic core temperatures, in ambient temperatures of 25, 30 and 35°C, and were subjected to hypercapnic challenges of +4 and +8 mmHg in each condition. In study 2 before and after sub-maximal exercise, radiant heating was employed to assess the influence of dynamic skin temperature on ventilation. RESULTS: In study 1, during hyperthermia there was a significant effect of mean skin temperature (F=4.1;p