Marathons rarely heart-stopping

Marathons don’t trigger cardiac arrests more than other types of vigorous exercise, say the authors of one of the most comprehensive investigations into the topic to date.

Despite the intense media scrutiny that surrounds deaths during marathons, US researchers found the true incidence of cardiac arrest during events is in fact reassuringly low.

Around 184,000 people have to participate in a long-distance event – either a half or full marathon - for one to experience cardiac arrest, according to the