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Metabolic and respiratory profile of the upper limit for prolonged exercise in man.
For high-intensity cycling, power (P) can be well described as a hyperbolic function of tolerable work duration (t): P=(W'/t) + P LL W' is a constant and P LL is the lower limit (asymptote) for PExpand
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The Slow Component of Oxygen Uptake Kinetics in Humans
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Muscle O2 uptake kinetics in humans: implications for metabolic control.
Muscle O2 uptake (VO2) kinetics in response to an augmented energetic requirement (on-transition) has never been directly determined in humans. We have developed a constant-infusion thermodilutionExpand
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Validity of criteria for establishing maximal O2 uptake during ramp exercise tests
The incremental or ramp exercise test to the limit of tolerance has become a popular test for determination of maximal O2 uptake $$(\dot{V}{\hbox{O}}_{{{{\rm 2max}}}}).$$ However, many subjects doExpand
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Muscle metabolic responses to exercise above and below the "critical power" assessed using 31P-MRS.
We tested the hypothesis that the asymptote of the hyperbolic relationship between work rate and time to exhaustion during muscular exercise, the "critical power" (CP), represents the highestExpand
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Contribution of exercising legs to the slow component of oxygen uptake kinetics in humans.
Rates of performing work that engender a sustained lactic acidosis evidence a slow component of pulmonary O2 uptake (VO2) kinetics. This slow component delays or obviates the attainment of a stableExpand
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Oxygen uptake kinetics.
Muscular exercise requires transitions to and from metabolic rates often exceeding an order of magnitude above resting and places prodigious demands on the oxidative machinery and O2-transportExpand
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The effects of training on the metabolic and respiratory profile of high-intensity cycle ergometer exercise
SummaryThe tolerable work duration (t) for high-intensity cycling is well described as a hyperbolic function of power (W):W=(W'·t−1)+Wa, whereWa is the upper limit for sustainable power (lyingExpand
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Effects of hyperoxia on maximal leg O2 supply and utilization in men.
We studied O2 transport in the leg to determine if hyperoxia will increase the maximal rate of O2 uptake (VO2max) in exercising muscle. An increase in inspired O2 fraction (FIO2) from 0.21 to 1.00Expand
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