Richard Jeyaranjan

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The purpose of this study was to determine the effect of altered metabolic acid-base status on the changes in ventilation in the transition from heavy exercise above anaerobic threshold to rest. Seven subjects ingested, in a randomized and blind manner, either NaHCO3 or CaCO3 (placebo) at a dose of 300 mg · kg−1 body mass and ran on a treadmill for five(More)
The purpose of this study was to determine, in man, the contribution of peripheral chemoreceptors to ventilation during constant-load, heavy exercise above anaerobic threshold at sea level, using hyperoxic suppression of peripheral chemoreceptor drive which was obtained by abrupt and surreptitious replacement of inspired air with 100% oxygen for a period of(More)
Transitions from rest to exercise and vice versa are reported to be associated with instantaneous changes in minute ventilation and the changes in the off-transitions are thought to be the reverses of those in the on-transitions. Such changes have been observed mainly in mild-moderate exercise and their extrapolation to heavy exercise above anaerobic(More)
The purpose of this study was to examine the effects of duration and the concomitant ventilatory drift of heavy exercise on the changes in ventilation following the cessation of exercise. Seven male subjects ran on a motor-driven treadmill at a constant work-rate of 90% of $$\dot V_{O_2 \max } $$ for either 5 min or 7 min on 60 occasions. The exercise was(More)
The purpose of this study was to determine the role of lactic acidosis in the ventilatory response to heavy exercise above anaerobic threshold. Seven subjects ingested either NaHCO3 or CaCO3 at a dose of 300 mg/kg body weight and ran on a motor-driven treadmill at a work load corresponding to 90% of VO2max and above anaerobic threshold for a period of 5 min(More)
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