New research from the University of Leeds indicates that male endurance athletes over the age of 50 may face heightened risks of heart rhythm disturbances during or following exercise. The study, published in the European Journal of Preventive Cardiology, highlights how years of intense physical activity could lead to unexpected cardiovascular issues for this demographic.
The research involved monitoring 106 healthy male runners and cyclists using wearable activity trackers and implantable heart monitors. Approximately one in four participants experienced episodes of ventricular tachycardia, a rapid heart rhythm that can become life-threatening if sustained. Notably, 75% of those who experienced these episodes exhibited signs of myocardial scarring.
“Our study shows that exercise was only associated with a risk of developing abnormal heart rhythms in those who were already high risk due to heart scarring,” stated Wasim Javed, the study’s lead author. This finding emphasizes the importance of recognizing underlying health conditions among older athletes.
According to the American Heart Association, regular physical activity can significantly reduce the risk of cardiovascular disease and stroke, even with just 30 minutes of exercise most days. Cardiologists at the Cleveland Clinic support this perspective, noting that exercise strengthens the heart, enhances circulation, and contributes to overall cardiovascular health.
Despite the potential risks identified in the study, the findings suggest that long-term endurance training remains largely beneficial for the majority of older athletes. “Athletes who developed abnormal heart rhythms were not exercising more or harder than athletes without abnormal heart rhythms,” Javed noted. “This suggests that exercise itself is not the cause but could act as a trigger for dangerous heart rhythms in those already with an underlying heart issue.”
In light of these findings, researchers recommend that older male athletes, particularly those with extensive competitive backgrounds, undergo regular cardiovascular screenings. It is also essential for these individuals to discuss any symptoms such as unexplained dizziness, palpitations, or breathlessness with a healthcare provider. Wearable heart-monitoring devices could serve as valuable tools for early detection of irregular rhythms.
“Athletes in this group should have regular health checks to ensure they remain healthy,” Javed emphasized, reiterating the safety and immense benefits of exercise while highlighting the need for precaution among those at risk.
As the study sheds light on the complexities of endurance training and heart health, it serves as a reminder for older athletes to remain vigilant about their cardiovascular health.
