Exercise Intensity Prescription - Prescribed Exercise Intensity: General Concepts

7 important questions on Exercise Intensity Prescription - Prescribed Exercise Intensity: General Concepts

How should the specific exercise intensity domain for a cardiac patient be determined?

  1. Clinical and pathophysiological evaluation
  2. Rehab goals
  3. Nature of the physiological responses in the exercise domain

Why can't the values obtained from incremental exercise testing for light, moderate to high-intensity exercise directly be transferred to CWR exercise modality?

The CWR does show a slow VO2 kinetic component which increases O2 expenditure for the same workload. Therefore, peak VO2 based domains should be estimated at a relative higher place in a domain.

How can you check for the fundamental differences between O2 measured with incremental vs continuous work load?

Reduce the WR prescription in the continuous workload compared to the incremental work load right from the start. The amount of reduction depends on the state of the aerobic system (e.g. VO2 delay time).
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What is the lowest intensity an exercise regime can do wonder for cardiac patients?

40% peak VO2

For which patient groups is the low to moderate-intensity exercise domain indicated?

  • recent hemodynamic decompensation
  • Weight-loss
  • bad arrhythmias

What cardiac patient groups benefit from high to severe-intensity exercise?

Stable CHF with VO2 peak < 13mL/kg/min

How long does a person last in the high to severe-intensity exercise domain?

About 210 seconds

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