If 33-year-old Jacob is cross-training and his current heart rate is 137 beats/min, exercising at his current level of exertion _____
A)could potentially be dangerous for a non-athlete of his age
B)is not intense enough to improve his cardiovascular fitness
C)will help improve his cardiovascular fitness
D)is appropriate for a competitive athlete in training

Question

Quizplus · Accepted Answer

A heart rate of 137 beats/min during cross-training is in the moderate intensity range and is a safe and effective way to improve cardiovascular fitness for a non-athlete of Jacob's age. It is not considered dangerous and it is not necessary to reach a higher heart rate to improve cardiovascular fitness.

If 33-Year-Old Jacob Is Cross-Training and His Current Heart Rate