To find the maximum heart rate, use the formula 220 - age.
For a 12-year-old, the maximum heart rate would be 220 - 12 = 208 beats per minute.
To find the lower range of the target heart rate zone (70% of the maximum heart rate), multiply the maximum heart rate by 0.70.
Lower range = 208 * 0.70 = 145.6 beats per minute.
To find the upper limit of the target heart rate zone (85% of the maximum heart rate), multiply the maximum heart rate by 0.85.
Upper limit = 208 * 0.85 = 176.8 beats per minute.
Therefore, the lower range of the target heart rate zone for a 12-year-old would be approximately 146 beats per minute, and the upper limit would be approximately 177 beats per minute.
If you are 12 years old, which math problem would give you your maximum heart rate? 220-12 After finding your maximum heart rate, remember your target heart rate zone is 70-85% of your maximum heart rate, What would be your lower range or your target heart zone? ___What would be your upper limit?_____
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