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?
E: 170
# 200 - 12
# 100
:: 220 - 12
#: 150
E: 200 + 12
220 ÷ 12
# 167
:: 208
# 146
To find your maximum heart rate as a 12 year old, you would use the formula 220 - age.
So, 220 - 12 = 208 beats per minute (bpm) would be your maximum heart rate.
To find your target heart rate zone, you would then calculate 70% and 85% of your maximum heart rate:
70% of 208 bpm = 0.7 x 208 = 145.6 bpm
85% of 208 bpm = 0.85 x 208 = 176.8 bpm
Therefore, your target heart rate zone as a 12 year old would be between 146 bpm and 177 bpm.