Question

the recommended heart rate range for a 25-year-old female who wants to exercise between 60 to 80 percent of her maximum capacity is which of the following?
a. 98 to 146 beats per minute
b. 110 to 176 beats per minute
c. 117 to 156 beats per minute
d. 132 to 176 beats per minute
e. 110 to 156 beats per minute

Explanation:

Step1: Calculate maximum heart rate

Maximum heart rate = $220 - \text{age} = 220 - 25 = 195$ beats per minute.

Step2: Calculate lower target rate

Lower rate = $60\% \times 195 = 0.6 \times 195 = 117$ beats per minute.

Step3: Calculate upper target rate

Upper rate = $80\% \times 195 = 0.8 \times 195 = 156$ beats per minute.

Answer:

c. 117 to 156 beats per minute