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LUTEINIZING HORMONE AND FOLLICLE STIMULATING HORMONE SECRETION PATTERNS IN FEMALE ATHLETES WITH AND WITHOUT MENSTRUAL DISTURBANCES
Author(s) -
PIRKE K. M.,
SCHWEIGER U.,
BROOCKS A.,
TUSCHL R. J.,
LAESSLE R. G.
Publication year - 1990
Publication title -
clinical endocrinology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 147
eISSN - 1365-2265
pISSN - 0300-0664
DOI - 10.1111/j.1365-2265.1990.tb00499.x
Subject(s) - luteal phase , endocrinology , medicine , follicular phase , luteinizing hormone , menstrual cycle , follicle stimulating hormone , blood sampling , hormone , biology
SUMMARY Thirty‐one young female athletes and 13 age‐matched sedentary controls were studied throughout one menstrual cycle or over a 6 week period. Blood was sampled on 5 days per week. Episodic gonadotrophin secretion was measured in the early follicular phase and in the late luteal phase by blood sampling over a 12‐h period at 15‐min intervals. Eight athletes had anovulatory cycles, nine had impaired progesterone (P 4 ) secretion during the luteal phase and 14 had normal cycles as judged from oestradiol (E 2 ) and P 4 plasma levels. Athletes with normal cycles had shorter cycles, lower E 2 maxima at midcycle, and lower E 2 and P 4 concentrations during the luteal phase than had sedentary controls. Episodic luteinizing hormone (LH) secretion in the early follicular phase was significantly impaired in the anovulatory athletes: the average LH values over 12 h and the number of secretion episodes were significantly reduced. No significant changes were seen in follicle stimulating hormone secretion.