Exercising can not only help your body but it can can also cause structural changes in the heart. Researchers have found that endurance athletes "showed an increase in the size of both their left and right ventricles after 90 days of team training, while athletes who only did strength training had excessive growth in their left ventricles, but no change in their right ventricle size." Now, while the left ventricle was increased in endurance athletes, in strength training athletes the left ventricle is worsened.
To investigate further, scientist took 40 endurance athletes and 24 strength athletes and examined there hearts with echocardiography before and after 90 days of team training. After the 90 days while both groups left ventricle mass increased the "endurance athletes also showed better diastolic function in their left ventricle, and enlargement and more efficient contraction and relaxation in both of the lower chambers of the heart, or atria."
These results could help people with heart trouble by tailoring recommendations for rehabilitation and recreational exercise. So if you are having some heart problems, speak with your doctor about a rehabilitation program that can included certain forms of exercise to help strengthen you heart.
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