Becky is 16 years old and wants to find her Target Heart Rate for vigorous-intensity physical activity. She finds her MHR to be 204. Next she multiplies her MHR by 77% and 93%. Becky’s THR would be

Becky’s THR would be between 157 bpm and 190 bpm during the physical activity.

Explanation:

From the given information;

Since Becky is 16 years old, in order to evaluate the MHR, we deduct the age from 220.

Therefore, the evaluation of the maximum age-related heart rate MHR = 220 - 16 = 204 beats per minute

We are being told that she then multiplies her MHR by 77% and 93%.

i.e

77% level: 204 × 0.77 = 157 bpm

93% level : 204 × 0.93 = 190 bpm

The evaluation indicates that the vigorous-intensity physical activity of Becky at 16 years old will need the target heart rate to remain between 157 bpm and 190 bpm during the physical activity.