Training for Longevity: The Reverse J-Curve for Exercise A wealth of scientific literature occupies the unique therapeutic benefits of quality of life, cardiovascular health and longevity. Consequently, many have assumed that more movement is always better.However, chronic excessive endurance training can adversely affect cardiovascular health. Ultra races can cause acute myocardial damage, which is evidenced by increasing the troponin and the natriuretic peptide in the brain.In addition, a sudden cardiac arrest at marathons and triathlons occurs more frequently than shorter races. Experienced endurance athletes often show an abnormal heart rate with an increased risk of myocardial fibrosis and coronary conciliations.Chronic excessive training has consistently associated with increased risk for atrial fibrillation and a certain attenuation of the longevity advantages. The optimal training dose remains unknown and is probably different between the individual persons.
Current studies suggest that 2.5 to 5 hours / week of moderate or strong physical activity bring maximum benefit;> 10 hours / week can reduce these health benefits. This work can be found under https://pubmed.ncbi.nlm.nih.gov/32848273/