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Objectives: Bicuspid aortic valve (BAV) disease is the most common congenital cardiac malformation. BAV is considered as a valvulo-aortopathy and can lead to aortic valve stenosis, aortic valve regurgitation and aortic dilatation. Moreover, patients with BAV have a higher risk of aortic dissection and other catastrophic aortic events. Regular exercise causes morphological and physiological adaptations to the heart and could theoretically increase the risk of complications in BAV patients. Up to now, there is no clarity on the effects of sports exercise in BAV patients. Therefore, this cross-sectional study investigates the effect of intensive training in people with bicuspid aortic valve. Patients and methods: 69 participants were recruited including 23 BAV athletes, 21 BAV non-athletes and 26 TAV athletes. Participants were evaluated and informed at the Leuven University Hospital or Antwerp University hospital. Cardiac evaluation was performed by transthoracic echocardiography. Demographic and echocardiographic parameters were compared between the groups. Data analysis was performed using SPSS. Results: Prevalence of BAV in athletes (1,07%) and non-athletes (1,45%) in this study was similar to the prevalence in other studies. Ascending aorta diameter was significantly different between the three groups (P = 0,04), but with post-hoc correction, no significant differences could be found. The presence of aortic valve regurgitation or aortic valve stenosis was significantly higher in BAV participants compared to TAV participants (P <0,05 for AR, P <0,05 for AS). Difference between BAV athletes compared to BAV non-athletes for aortic valve dysfunction was not significant Both athlete groups had characteristics of an athlete’s heart compared to the BAV non-athletes. Conclusion: No increased risk of sport participation in BAV patients was found. Therefore, sports recommendations for BAV patients should depend on the presence of complications instead of the presence of BAV itself.