Question

question 4 of 5
how are the lower and upper limits of your target heart rate range defined?
a. taking a pulse in the first and last ten minutes of a workout.
b. subtracting your age from your maximum heart rate.
c. ranging from 30% to 70% of your maximum heart rate.
d. ranging from 50% to 90% of your maximum heart rate.

Explanation:

The target heart rate range for moderate - intensity exercise is typically calculated as a percentage of the maximum heart rate. The range of 50% - 90% of the maximum heart rate (calculated as \(220 - \text{age}\)) is a well - established guideline in exercise physiology. Option A is about pulse - taking timing, not defining the range. Option B is just the formula for maximum heart rate. Option C has an incorrect percentage range.

Answer:

D. Ranging from 50% to 90% of your maximum heart rate.