[Arrhythmias and sports activities].

Arrhythmias do not systematically prevent athletic activities. Symptomatic bradyarrhythmias may first require pacemaker implantation. Usually occurring on normal heart, supraventricular tachycardias are benign. When responsible for palpitations, exercise intolerance or syncope, they may benefit from the use of beta-blockers, calcium channel blockers or most frequently radiofrequency catheter ablation. Ventricular arrhythmias with underlying cardiac disease do not allow intense and sustained physical activities. In case of symptomatic ventricular arrhythmias without cardiac disease, the use of beta-blockers, calcium channel blockers or radiofrequency catheter ablation usually permits sport practice.