
Inside Exercise
Can extreme exercise damage the heart? With Dr Benjamin Levine
Jul 31, 2022
Dr Benjamin Levine, a leading expert in sports cardiology, discusses the determinants of aerobic capacity and the role of genetics in becoming an endurance athlete. The podcast covers the different types of exercise and their impact on heart size and function, including eccentric and concentric hypertrophy. The potential risks of extreme exercise and genetic heart diseases are explored, along with the effects of exercise on coronary calcium. The discussion concludes with the positive effects of exercise on vasodilator function and the importance of a balanced diet alongside exercise for optimal health.
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Quick takeaways
- Endurance exercise greatly affects the heart, with the most important factor being maximum stroke volume.
- Strength athletes, such as rowers, have the largest hearts among athletes, as their exercise involves intense muscle contractions and high stroke volume.
Deep dives
Exercise and the Heart: Effects of Endurance Exercise
Endurance exercise greatly affects the heart, with the most important factor being maximum stroke volume. During exercise, the heart expands and dilates to accommodate the increased blood flow driven by skeletal muscle contractions. Elite endurance athletes have the ability to pump a lot of blood due to their increased stroke volume. This is achieved through the combination of volume loading and eccentric hypertrophy, which allows the heart to accommodate a large amount of blood flow. Additionally, sustained endurance exercise has been shown to have numerous health benefits, with studies indicating that regular exercise improves cardiovascular health and increases longevity.
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