The Impact of Marathons on the Recovery of Heart Rate and Blood Pressure in Non-Professional Male Marathoners' (≥45 Years).

Physical activity has a positive impact on health, and the participation in exercise and sports, including marathons, has increased in popularity. This kind of sport requires extreme endurance, which can cause different health problems and even lead to death. Participants without sufficient preparation and, in particular, men 45 years of age and older belong to a high risk group.