A very interesting article out of New Zealand linking AF with endurance athletes.
Hamish Carter, winner of the 2004 Athens Olympic triathlon, was diagnosed with afib last year. Other Kiwi athletes to have developed "heart issues" include a rower, a Tour de France cyclist, and a triple Olympic champion. Of course, the list of affected athletes could go on. "Studies have found scarring in the right ventricle of 13 per cent of endurance athletes and estimated veteran athletes may be five times more at risk of atrial fibrillation, Carter's arrhythmia."
"But the Heart article authors, citing recent studies, say there is now evidence that years of asking the heart to pump "massive" volumes of blood for hours at a time can lead to long-term damage and reverse the huge health and life expectancy advantages of moderate aerobic exercise."