Which of the following is true of cardiovascular endurance? a. it requires training for at least 20 continuous minutes three times per week. b. it is critical for stop-and-go sports such as softball or baseball. c. it requires training at least 5 days a week. d. it will improve flexibility during warm-up activities. e. c and d

a. It requires training for at least 20 continuous minutes three times per week.

Explanation:

Cardiovascular endurance is very important to our lives, and is strengthened through physical activity that raises the heart rate and keeps it up for a considerable and controlled period of time, such as through intensive training for at least 20 years. continuous minutes three times a week. In this type of training, your heart rate rises, strengthening the heart, stimulating blood flow and burning fat. All of this coupled with your body's increased ability to deliver oxygen and energy to all the muscles in use are the cornerstones of cardiovascular endurance.