Kinetics of Oxygen Uptake Studied with Two Different Pseudorandom Binary Sequences
The rate of increase in oxygen uptake (VO2) is normally observed as a function of time following a step or some other change in work rate. This leads to the description of the kinetic parameter the time constant (τ) 1,2. An alternative approach to the description of the kinetics of V02 can be found in frequency domain analysis. This approach was followed by Casaburi and colleagues 3 for sinusoidal variations in work rate. More recently, the pseudorandom binary sequence (PRBS) work rate forcing has been used to study the kinetics of ventilation 4,5 and VO2 6,7.
KeywordsOxygen Uptake Work Rate Ventilatory Threshold Frequency Domain Analysis Sinusoidal Variation
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