If you are 13 years old, which math problem would give you your maximum heart rate? If you are 13 years old, what is your maximum heart rate?Response area After finding your maximum heart rate, remember your target heart rate zone is 70-85% of you maximum heart rate. What would be the lower range or your target heart zone? Response area What would be the upper limit? Response area
The math problem to determine your maximum heart rate is: subtract your age from 220.
For a 13-year-old, the maximum heart rate would be 220 - 13 = 207 beats per minute.
The lower range of the target heart rate zone is 70% of the maximum heart rate: 0.70 x 207 = 145 beats per minute.
The upper limit of the target heart rate zone is 85% of the maximum heart rate: 0.85 x 207 = 176 beats per minute.