Question

John is a 32 year old swimmer. His resting heart rate is 52. He would like to workout between 70% and 80% of his heart rate reserve. What is John's target heart rate range?

Answer 1

147 to 161 bpm

Step-by-step explanation:

The appropriate formulas are ...

220 - age = maximum heart rate

⇒ 220-32 = 188

Maximum heart rate - resting heart rate = heart rate reserve

⇒ 188 -52 = 136

(Heart rate reserve X training%) + resting heart rate

⇒ 136 × {0.7, 0.8} +52 = {147.2, 160.8}

John's target heart rate range is 147 to 161.