Asymmetrical Transients of Cardiorespiratory Variables in Response to Ascending and Descending Ramp Forcings of Exercise Load
Although the response kinetics of ventilatory and gas exchange variables to incremental ramp exercise have been studied intensively in connection with the development of noninvasive techniques for detecting the AT,1, 3 analysis of responses to decrementai ramp forcings is scarce except for the early work of Karlsson and Wigertz.4 They found that with decreasing ramp slope, in both the incremental and decrementai phases of the ramp exercise, the lag of the ventilation and heart rate responses behind the input stimulus became increasingly prolonged.
KeywordsDioxide Lactate Respiration Norepinephrine Catecholamine
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