| OCR Text |
Show 76 mediation of both thermoregulatory catecholamine release (Terjung, and response 1979). Although higher a . rectal a temperature potential dose logically was effect by contributed to may have underlying determinant, elevated an higher a influenced the degree of the sympathetic output breath and frequency peripheral vasodilation also and muscle • blood flow Nielsen, In and the Sjogaard, aummar-y , rise in heart rate & Bonde-Peterson, 1984). the simple addition of exercise environment exerts the during prolonged, occur a cardiovascular, thermoregulatory, that and evaporative profound influence on cycling. by changes in on losses exert temperature internal temperature, distribution, rate and is environment, elevated more heat reduced and oxygen drift and a heat storage by evaporation. uptake the volumes respiratory heat transfer in upward drift in in blood pressure. and the but complex which affects blood volume during exercise ventilatory from the evaporative the downward the efficiency hydration status, the on dynamics Skin blood flow is regulated by ambient conditions addition to 1988; ambient wind to convective heat transfer and sweat enhancing al., and metabolic constant-rate heat rectal an et profound influence Thermoregulatory adjustments brought convective (Kalis in are a Metabolic normoconvective enhanced drive to apparent tract. mechanisms, heart due to dissipate convective and in combination with stimulate, they responses physiological exert the a • |
