Exercise Physiology

Question 1

What happens to preload during exercise?

Answer 1

increase in preload

Question 2

What is the effect of exercise on splanchnic vessels?

Answer 2

vasoconstriction of splanchnic vessels

Question 3

What is the effect of exercise on skeletal muscle?

Answer 3

vasodilation, drop in DBP, drop in afterload

Question 4

What is the effect of excercise on heart rate and coronary perfusion?

Answer 4

Increase in heart rate, and decrease in coronary perfusion (because the time spent in diastole at high heart rates)

Question 5

What is the effect of excercise on venous system?

Answer 5

venoconstriction, therefore increase in LVEDV, increase in preload (how much blood coming back to heart)

Question 6

What is the fick principle?

Answer 6

cardiac output= rate of o2 consumption/ AV difference

Question 7

What happens during early vs late exercise to SV?

Answer 7

early exercise-dictated HR and SV for cardiac output
intense excercise- HR primarily responsible for cardiac output