Chapter 5 – Cardiorespiratory Fitness

Measuring Heart Rate

Those starting the VO2 max assessments must first measure their heart rate, an important component used in the calculations.

Here is a video describing how to determine heart rate:

Creating a Plan to Develop CR Fitness

Once the assessments have been completed, the next step is to develop a plan for maintaining or improving your current level of fitness. This fitness plan should include activities that are safe and adapted to meet your personal goals. Once these fitness goals have been identified, the principles of adaptation to change can be utilized to achieve those goals. These principles include specificity, targeting specific areas in a workout, and overload, the practice of increasing exertion as the body adapts to ensure continued gains in fitness levels. Specifically, you need to apply the FITT principle (Frequency, Intensity, Time, and Type) described in detail in the previous chapter, “Fitness Principles”:

  • Frequency: 3–5 days per week for healthy adults.
  • Intensity: moderate to vigorous intensity, which equals 40–85% of heart rate reserve, or 55–90% of percentage of max heart rate. (More information about intensity will be provided later.)
  • Time/duration: 20­­–60 minutes per session or accumulation of 150 minutes per week. Sessions must be continuous for 10 minutes or more.
  • Type/mode: Use large muscle groups and exercises specific to cardiorespiratory exercise.

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Fitness for Paramedics: A Guide for Students at Cambrian College, 2nd Edition Copyright © 2024 by Lynn Kabaroff and Martin Dubuc is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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