| OCR Text |
Show 87 in a humid hot, environment, however, would manifest a • decreaslng work rate heart rate drifts as possible upward. • shifts in the heart with high body temperature gives a rate/V02 relationship during is for necessary precise Cardiac 4. output evidence that further assessing temperature-related increases work rate exercise in these variables quantification. measurements are an important aspect of assessing cardiovascular of exercise and exercise within different environments. Recent improvements (Marks, in impedance cardiography (Teo measurements of considerably more cardiac rate drift However, in a as the several Rosenthal, It has exercise during prolonged the of and 1985) have 1985) valid and reliable. common environment may heated made exercise or during (Rowell, referenced l.y been assumed the 1986). studies utilized dye-dilution techniques results. require a heart Endurance that exercise larger cardiac output cardiovascular system must redirect blood flow and substrate for to sweating may reveal an while continuing active muscles. the output in normoconvective volume al., produced questionable supply fluid and et & constant remains nearly output seen different modes cardiac output and stroke volume both experimental CO2 rebreathing may have during techniques utilizing CO2 rebreathing Rocchini, Beekman, Katch, that function and to supply oxygen comparing hyperconvective cardiac environments and stroke cardiac both in drift output upward in addition to , an increase in heart rate during |
