Some endurance athletes may suffer damage to the heart’s right ventricle, research shows, but the findings do not suggest that this type of exercise is unhealthy, and most recover a week after a race. The right ventricle is one of the four chambers in the heart involved in pumping blood. “Our study identifies the right ventricle as being most susceptible to exercise-induced injury,” said Dr. Andre La Gerche of the University of Melbourne, Australia. The findings were reported in the European Heart Journal.