Key points from article :
Researchers found that experiencing irregular heartbeats during exercise may increase the risk of developing heart diseases and death.
Premature ventricular contractions (PVCs) are extra heartbeats caused by early electrical signals in the lower chambers.
Increased PVC counts were linked to a higher risk of major heart conditions (60-80%), death from any cause (50-60%), and indicators of heart failure.
Complex PVC rhythms carried a higher risk than typical rhythms.
Participants with the most PVCs had lower blood pumping volume per heartbeat, a sign of heart failure.
Doctors may use these findings to assess heart disease risk, and future studies will explore PVCs in younger people.
Study led by Stefan van Duijvenboden from Oxford Population Health, published in Circulation.
