1 rich Libsyn https://www.libsyn.com 90 600 Despite increased participation in US long-distance running races, cardiac arrest incidence remains stable. Authors Jonathan Kim, MD, MSc, of Emory University, and Aaron Baggish, MD, of the University of Lausanne Switzerland, discuss the RACER 2 study and compare results with initial findings published in the RACER 1 study from 13 years ago, with JAMA Associate Editor Gregory Marcus, MD, MAS. Related Content: Cardiac Arrest During Long-Distance Running Races Healthy Dialogue https://jamanetwork.com/journals/jama/pages/healthy-dialogue <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/35917190/height/90/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/000000/" height="90" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/content/186374755