heart arrhythmias

When I heard that there was a new book coming out about heart arrhythmias in endurance athletes, I was interested. Several years ago, I read some of the research papers that the book’s authors refer to. One was a cohort study on participants in the Vasaloppet, the 90-kilometer ski marathon in Sweden. Those researchers found that skiers who competed in more Vasaloppets had more heart arrhythmias – as did those who finished the race the...