if you're 13 years old which man problem would give you your maximum heart rate? if you are 13 years old what is your maximum heart rate? at the finding your maximum heart rate remember your target heart rate zone is 70 to 85% of you maximum heart rate. what would be the lower range of your target heart zone? what should be the upper limit?
If you are 13 years old, the maximum heart rate that you could achieve during physical activity is calculated as 207 - (0.7 x age), which in this case would be 194 beats per minute.
The lower range of your target heart rate zone (70%) would be 135.8 beats per minute (194 x 0.7), and the upper limit (85%) would be 164.9 beats per minute (194 x 0.85).
Therefore, during physical activity, you should aim to maintain a heart rate between 135.8 and 164.9 beats per minute in order to be in your target heart rate zone.