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Zusammenfassung

Die Genese der häufigen Zyklusstörungen bei Ausdauersportlerinnen ist bislang ungeklärt. Deshalb wurden bei 10 zyklusstabilen Frauen die hypothalamisch gesteuerten LH-Episoden in Ruhe (8. Zyklustag) und während 3 Std Dauerbelastung am Fahrradergometer (10. ZT.) untersucht. Während bei untrainierten Frauen (n = 3) die LH-Episoden unter Belastung völlig verschwanden und LH trotz Anstieg von Östradiol abfiel, nahmen die LH-Episoden bei trainierten Frauen (n = 5 mit 2–6 Std Sport/Woche) an Frequenz und Größe zu. Diese Einheitlichkeit trifft für Leistungssportlerinnen nicht mehr zu. Die Daten bestätigen, daß Zyklusstörungen von Sportlerinnen hypothalamisch verursacht sind.

Schlüsselwörter

Zyklusstörungen Sportlerinnen Hypothalamische Regulation 

Influence of Sport on the Hypothalamic Regulation of Menstruation

Summary

The origin of cycle disorders in women performing endurance sports is unknown so far. For this reason the hypothalamic LHRH mediated LH-pulses were examined in 10 healthy female volunteers with normal cycles during rest (day 8 of the cycle) and during 3 hours of exercise on the bicycle ergometer.

In untrained subjects (n = 3), the LH-pulses disappeared under exercise, although oestradiol rose markedly. Trained women with exercise of 2–6 h/week (n = 5) reacted with increase of magnitude and frequency of LH-pulses. This uniformity was not detectable in competitive athletes of endurance sports. These data confirm the hypothalamic origin of cycle disorders in sportswomen.

Key-words

Cycle disorders Sportswomen Hypothalamic regulation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • A. S. Wolf
    • 1
    • 2
  • T. Sir-Petermann
    • 1
  • M. Grünert
    • 3
  • R. Benz
    • 1
  1. 1.FrauenklinikUniversität UlmDonauDeutschland
  2. 2.Universitätsfrauenklinik UlmUlmDeutschland
  3. 3.Sportmedizinische AbteilungUniversität UlmDonauDeutschland

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