Answer :
Answer:
Your target heart rate is 65% to 90% of your age-predicted maximum heart rate.
Explanation:
Target heart rate is actually aprox 85% of the age-predicted maximum heart rate. Maximum heart rate is calculated by subtracting your age from 220. Target heart rate will also change depending on the physical activity you do. It can also be affected by some drugs and medications. Some specialists recommend to monitor your target heart rate so you manage your fitness goals.