Abstract
We performed maximal graded exercise testing (GXT) in 36 consecutive young asymptomatic men with mitral valve prolapse (MVP) and compared the findings with those for a group of 27 age-matched controls. Exercise did not induce cardiac arrhythmias in the subjects with MVP, nor did they have reduced effort tolerance as measured by the duration of exercise, estimated maximum workload achieved, or their functional aerobic impairment (FAI). Only one subject with MVP had a positive exercise test at maximal effort. We conclude that in unselected asymptomatic male subjects, MVP is not associated with either exercise-induced cardiac arrhythmias or reduced exercise tolerance.
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