If you are 12 years old, which math problem would give you your maximum heart rate?

After finding your maximum heart rate, remember your target heart rate zone is 70-85% of you maximum heart rate, what would be your lower range or your target heart zone?

What would be your upper limit?

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To estimate the maximum heart rate for a 12-year-old, you can use the formula: Maximum Heart Rate = 220 - Age.

For a 12-year-old, the maximum heart rate would be 220 - 12 = 208 beats per minute (bpm).

To find the lower range of the target heart rate zone (70% of the maximum heart rate), you would calculate: 0.7 * 208 = 145.6 bpm (rounded to 146 bpm).

To find the upper limit of the target heart rate zone (85% of the maximum heart rate), you would calculate: 0.85 * 208 = 176.8 bpm (rounded to 177 bpm).