Scientists at Yale School of Medicine found that intense exercise does not increase the risk of serious heart events in people with hypertrophic cardiomyopathy (HCM). The study was presented at the College of Cardiology Annual Scientific Session.
HCM occurs when the heart muscle thickens and makes it harder to work. Sometimes the disease is asymptomatic and can cause sudden death at a young age. Traditionally, doctors advised people with HCM to avoid intense exercise, and some were banned from professional sports.
The study included 1534 people with HCM, ages 8 to 60, from five countries (USA, UK, Canada, Australia, New Zealand). About 20% were under the age of 25.
42% of participants regularly attended intensive training (more than 60 hours per year). Sports included running, swimming, basketball and football. Another 43% of the participants did moderate exercise, brisk walking or aerobics. 16% of the participants led an inactive lifestyle.
The analysis showed that people who exercised intensely were not at high risk of death, fainting, or other adverse heart-related events.
The researchers stressed that people with HCM should be visited regularly by a cardiologist experienced in the disease. Only an experienced doctor can advise patients on appropriate exercises, personalized recommendations, and an emergency plan.