| OCR Text |
Show 66 The contrast minute 30 versus heart rate MH bpm, heart comparison 163.92 the cardiovascular to body temperature is (Rubin, This 1987). arterial blood pressures simultaneous during the trials both heart increase rate (Jose to tightly coupled heart et al., in heart rate rate in and systemic The rectal the occurs and 1970). apparently confirms drift often that shown progressive in stroke volume decreases 180.67 (MN increases to tightly coupled temperature-related upward drift in concurrently with 90 mechanism of the control system, minute at bpm 15 in difference the Previous research has bpm). major 16.75 minute at significance (see Appendix G), with increasing rate, revealed temperature that hypothesis during prolonged exercise is seen hyperthermia. and Raven stevens (1988) , • stated the cardiac output remains nearly constant because that in heart rate and stroke volume changes direction and equal that speculate a in is It magnitude. higher cardiac output normoconvective trial due to are tempting occurred competition opposite in for to the during blood flow • response was Mean trials exercising the between muscles not measured blood pressure and remained (see Figure 7). circulating hypothalamic lower and the periphery, during this investigation. decreased during progressively during the normoconvective Peripheral vasodilation blood to the control this but surface and driven for by to cooling the shunt both trial more is under increase in body heat |
