Marathon is a sport that may cause cardiac arrests. Unfortunately, in many marathon events whose entrants are more than 10,000 runners, cardiac arrests occur with high frequency. The less ready you get, the higher the risks get. The key to keep running is to properly understand your health. Be smart, Be healthy and Enjoy running! Yokohama Marathon aspires to help healthy life for the runners who enter this event.
The marathon is funny sport when you did a training. It is just fine to walk for the first step. Please acquire the habit of getting physical activity step by step. Don’t do exercise only for this marathon, but please challenge to keep the exercise for your health.
Caution needed. Please check your body from now on to enjoy sports for years.

If you have checked even one factor, the risk of cardiac arrest increases by five times, compared to those who have not checked.

Please take a medical checkup if you have a risk factor. There are facilities offer medical checkup specialized in running.
Inquiries
Yokohama Sports Medical Center
https://yspc.or.jp/ysmc/
Japan Medical Association
http://www.med.or.jp/link/search.html
Yokohama Marathon Organizing Committee Medical Group