Correct answer choice is:
A. Measure your heart rate before, during, and after workouts.
Explanation:
Heart rate monitoring is an essential part particularly in cardiovascular fitness evaluation and exercise plans. Polar heart rate monitors have been produced to mark healthful people's heart rate and they target to encourage somebody training securely and efficiently.
Monitors can be wasted as a band over the chest, on the wrist and also on the head, and by regulating your heart rate can benefit your practice at the best intensity.
