Question: Anna experienced many physiological adaptations during a one-year endurance training program. One adaptation she experienced was increased vasodilation in working muscles. What does that mean?

Anna experienced many physiological adaptations during a one-year endurance training program. One adaptation she experienced was increased vasodilation in working muscles.

What does that mean?

Select one:

a. Her muscles contract more quickly, allowing for greater economy of movement.

b. In working muscles, capillary diameter decreases to allow for greater blood flow.

c. Her aerobic endurance decreases as she builds more muscle.

d. In working muscles, capillary diameter increases to allow for greater blood flow.

e. Her heart pumps faster during exercise, but more slowly at rest.

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