Direct Exercise Intensity Assessment: physiological bases - Domains of Exercise Intensity: The Appropriate Basis for Exercise Prescription - Moderate to High-Intensity Exercise

4 important questions on Direct Exercise Intensity Assessment: physiological bases - Domains of Exercise Intensity: The Appropriate Basis for Exercise Prescription - Moderate to High-Intensity Exercise

How are the upper- and lower limit of the moderate to high-intensity exercise domain represented?

lower limit: First Ventilatory Threshold
upper limit: Critical Power

How is Critical Power represented?

As the highest WR that both VO2 and lactate are in steady state.

Which quantitative values of VO2 and HR correspond to the Critical Power during incremental exercise?

  • VO2: 60-70% peak
  • HR: 70-80% peak
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How can the increased VO2 at CP with CWR vs incremental exercise testing be explained?

A 'slow' component in the CWR, which decreases muscle efficiency and thus increases O2 consumption for the same WR

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