Answer:
Kevin, with a resting heart rate of 70 bpm has a maximum heart rate of 209 bpm, has a target rate hearth zone between 167 and 188 beats per minute.
Explanation:
Target heart rate is a measure used to calculate the heart rate range to be maintained during intense exercise.
By knowing the resting heart rate (RHR) and maximum heart rate (MHR), a target heart rate (THR) calculation can be made from the heart rate reserve (HRR)
<u>
Data</u>:
- <em>RHR = 70 bpm
</em>
- <em>MHR = 209 bpm
</em>
<u>
Calculation of the heart rate reserve</u>:
- <em>HRR = MHR - RHR
</em>
- <em>HRR = 209 - 70
</em>
- <em>HRR = 139 bpm</em>
<u>Calculation of the target hearth rate</u>:
THR is obtained by multiplying the HRR by 0.7 and 0.85, to obtain the heart rate range in which the exercise can be performed.
- <em>Lower THR limit = (HRR x 0.7) + RHR </em>
- <em>Lower THR limit = (139 x 0.7) + 70 = 167.3 ≈ 167 bpm
</em>
- <em>Upper limit of THR = (HRR x 0.85) + RHR </em>
- <em>Upper limit of THR = (139 x 0.85) + 70 = 188.15 ≈ 188 bpm
</em>
For Kevin, the ideal heart rate for intense exercise is between 167 and 188 beats per minute.
Note: Although the calculations were reviewed and are accurate, the result does not match the options given in the question.