In calculating training heart rate using the Karvonen method, what is the calculated HR if Max HR is 200 bpm and Resting HR is 82 bpm at a 60% intensity?

To calculate the training heart rate using the Karvonen method, you need to follow these steps:

1. First, determine the heart rate reserve (HRR). This is done by subtracting the resting heart rate from the maximum heart rate:

[

HRR = Max HR - Resting HR = 200 bpm - 82 bpm = 118 bpm.

]

2. Next, calculate the exercise intensity (in this case, 60%) of the heart rate reserve:

[

Intensity = HRR \times (desired intensity) = 118 bpm \times 0.60 = 70.8 bpm.

]

3. Finally, add back the resting heart rate to find the target training heart rate:

[

Target HR = Resting HR + Intensity = 82 bpm + 70.8 bpm = 152.8 bpm.

]

This is typically rounded to the nearest whole number, resulting in approximately 153 bpm.

Thus, the correct training heart rate at a 60% intensity using the Karvonen method is 153 bpm. This method is effective because it takes both the resting heart rate and the maximum heart rate into account, providing