[Effect of high performance sports on female menstrual cycle exemplified by windsurfing]

Questionnaires were sent to all female members (n = 60) of the Austrian Funboard Association (funboard = the most athletic windsurfing class). They included questions about the menstrual cycle, physical capacity, libido and performance dependent on the particular cycle phase. There was no significant libido or capacity peak, neither for the windsurfers nor for a normal collective (n = 100); on the other hand there was an evident low during menstruation. A mean length of the menstrual cycle of 26.5 +/- 2.8 days and a bleeding time of 4.4 +/- 1.2 days were found, while metrorrhaghia and dysmenorrhea were less frequent than in the normal collective. One reason for these findings could be that physical activity reduces dysmenorrhea.