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Fitness Programmes and Exercise Sessions

Heart rate training zones and the Karvonen method

  • 3 things to know
  • AS 1

Overview

Estimating maximum heart rate, aerobic and anaerobic zones, heart rate reserve, worked Karvonen and percentage calculations, monitoring heart rate, energy zones and the effect of heat.

What you need to know

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Key term

An 18-year-old has a resting heart rate of 65 bpm. Use the Karvonen method to find the target heart rate at 75% intensity.

Key term

A trained 30-year-old has a resting heart rate of 50 bpm. Use the Karvonen method to find the 60 to 80% zone.

Key term

What are energy zones in training?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    How is maximum heart rate estimated?

    Model answer

    Maximum heart rate is estimated as 220 minus age in years. The estimate can be out by ten or more beats per minute for an individual.

  2. 2

    What is the estimated maximum heart rate of a 17-year-old?

    Model answer

    The estimated maximum heart rate is 203 bpm. The working is 220 − 17 = 203 bpm.

  3. 3

    What is a heart rate training zone?

    Model answer

    A training zone is a range of heart rates, set as percentages of maximum, that produces a particular training effect. A session kept within the zone has a measurable intensity.

  4. 4

    Which heart rate zone is used for aerobic training?

    Model answer

    The aerobic training zone is commonly set at 60 to 80% of maximum heart rate. The lower end suits beginners, while the upper end gives a greater aerobic training effect.

  5. 5

    Which heart rate zone is used for anaerobic training?

    Model answer

    Anaerobic training usually takes place above about 80% of maximum heart rate. The lactic acid system contributes heavily above this level, and lactic acid accumulates.

  6. 6

    Calculate the aerobic training zone of 60 to 80% for a 40-year-old.

    Model answer

    The aerobic training zone is 108 to 144 bpm. The working is 220 − 40 = 180, then 0.6 × 180 = 108 and 0.8 × 180 = 144.

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AThe target heart rate is about 168 bpm.
BMaximum heart rate is 220 − 18 = 202 bpm.
CThe working is 0.75 × (202 − 65) + 65 = 167.75 bpm.

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