Functional state of sportsmen with mitral valve prolapse.
The study covered functional peculiarities in 541 professional sportsmen. Mitral valve prolapse (in 132 examinees) appeared to be associated with reliably lower levels of reticulocytes, leucocytes, lymphocytes CD4+, immunoglobulines G, magnesium, and higher cortisol level, in comparison with the sportsmen having no mitral valve prolapse. The athletes with mitral valve prolapse demonstrated more frequent changes in ECG, reliably lower performance in treadmill test, slower recovery of heart rate after exertion is over.