Does the running pace of marathon runners immediately before sudden cardiac arrest differ from the general finisher population?
Marathon-related sudden cardiac arrest occurs at running speeds similar to the general finisher population, challenging the assumption that less conditioned runners are at higher risk.
Marathon-related SCA occurred at running speeds indistinguishable from the general finisher population, challenging the assumption that less conditioned runners are particularly at risk of SCA.
Kato et al. (Sun,) studied this question.