The Impact of Exercise on the Cardiovascular System and Sex Differences

Dr Glenn McConell chats with Professor Ylva Hellsten from the University of Copenhagen in Denmark. She is an authority on the effect of exercise on blood flow and cardiovascular function. We talked about heart rate before exercise and blood flow and blood pressure during and after exercise. She pointed out that muscle blood flow can increase by 100-fold during exercise! We discussed the effect of physical activity and aging/inactivity and menopause on the cardiovascular system. Also the protective effects of exercise training and the importance of doing the physical activity that you enjoy. A very interesting chat. Twitter: @CVgroupNEXS.

0:00. Introduction and how Ylva got into exercise research
5:15. Eccentric exercise induced muscle damage
6:45. Increases in heart rate before exercise
7:35. Increases in blood flow during exercise
11:15. Even passive movement of limbs can increase blood flow
13:15. How does exercise increase blood flow?
16:40. How much does muscle blood flow increase during exercise?
18:35. Achieving adequate blood pressure and blood flow during exercise
23:22. Are muscle capillaries all open even at rest?
29:18. What happens to blood flow after exercise?
31:00. Redundancy in regulation of blood flow during exercise
36:01. Closing off blood flow to some areas during exercise
38:24. Reduced blood pressure after exercise
42:12. Blood flow and blood pressure during resistance exercise
44:00. Blood flow restriction during contractions
46:28. Fainting with prolonged standing, especially in the heat
49:45. Exercise training reduces blood pressure
52:30. Aging/inactivity and the cardiovascular system
53:35. Optimal exercise to improve the cardiovascular system
1:02:15. Blood vessel function declines with age are partly inactivity
1:05:30. Menopause, exercise training and blood vessel function
1:13:27. Long term activity and blood vessel function
1:16:02. Effects of different types of exercise training
1:17:50. Large muscle mass exercise
1:19:30. Interval training/Do the physical activity that you enjoy
1:20:55. Different ways to measure blood flow
1:22:59. Blood flow during exercise in disease groups
1:27:02. Isolated blood vessel cells from exercised muscle
1:31:42. Ylva’s research: does she usually find what she expects?
1:35:12. Takeaway messages
1:38:21. Outro (9 seconds)
Inside Exercise brings to you the who's who of research in exercise metabolism, exercise physiology and exercise’s effects on health. With scientific rigor, these researchers discuss popular exercise topics while providing practical strategies for all.
The interviewer, Emeritus Professor Glenn McConell, has an international research profile following 30 years of Exercise Metabolism research experience while at The University of Melbourne, Ball State University, Monash University, the University of Copenhagen and Victoria University.
He has published over 120 peer reviewed journal articles and recently edited an Exercise Metabolism eBook written by world experts on 17 different topics (https://link.springer.com/book/10.1007/978-3-030-94305-9).
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Not medical advice