Cardiovascular System Part 3 of 4 - Blood Pressure

Known errors in this video:
In this video I state that total peripheral resistance does not change much during aerobic exercise. This is not true for intense exercise like that depicted on the systolic, diastolic, and mean arterial blood pressure graph. In fact total peripheral resistance would decrease some even in low intensity exercise. What I was alluding to was the fact that most of the body is vasoconstricted and the active skeletal muscle is vasodilated. These two actions oppose each other in their impact on total peripheral resistance. If most of the body did not vasoconstrict during exercise the drop in total peripheral resistance would be extreme, especially in intense exercise. In fact, it would likely lead to unsafe blood pressure and blood flow issues if this were to happen. So to summarize: Total peripheral resistance does decrease during aerobic exercise, but not as much as it would if most of the bodily tissues did not vasoconstrict while the active muscle vasodilates.

This video shows Dr. Evan Matthews discussing blood pressure and how it is controlled by the body. This is part 3 of a 4 part series on the cardiovascular system. This video is specifically designed for use in an exercise physiology course.

For more information it is recommended that you read the following:

W. Larry Kenney, Jack H. Wilmore, David L. Costill Physiology of Sport and Exercise 7th ed. Chapter 6, 8.

Scott K Powers and Edward T Howley Exercise Physiology: Theory and Application to Fitness and Performance 10th ed. Chapter 9.

Link to Cardiovascular System Part 1 of 4 video

Link to Cardiovascular System Part 2 of 4 video

Link to Cardiovascular System Part 4 of 4 video

Exercise Physiology Teaching Current Edition Playlist

Exercise Physiology Teaching 1st Ed Playlist

How to measure blood pressure manually

How to measure blood pressure with an automated cuff (not for use with exercise)

Link to Dr. Evan Matthews website.