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Menstrual dysfunction in distance runners.

E Dale, D H Gerlach, A L Wilhite

    Obstetrics and Gynecology
    |July 1, 1979
    PubMed
    Summary
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    Endurance training in female distance runners is linked to menstrual dysfunction. This phenomenon may stem from lower body fat percentages or reduced ovarian function due to hormonal imbalances.

    Area of Science:

    • Sports Medicine
    • Endocrinology
    • Women's Health

    Background:

    • Menstrual dysfunction is a concern for female athletes.
    • Endurance training, particularly in distance running, may impact reproductive health.

    Purpose of the Study:

    • To investigate the prevalence and potential causes of menstrual dysfunction in women distance runners.
    • To compare menstrual and hormonal profiles of runners, joggers, and controls.

    Main Methods:

    • Survey of personal, training, menstrual, and contraceptive histories in 168 women.
    • Analysis of serum pituitary and ovarian hormone levels.
    • Determination of body fat percentage in subsets of participants.

    Main Results:

    Related Experiment Videos

  • Significant differences observed in menstrual function, body fat, and hormone levels among the three groups.
  • Distance runners exhibited higher rates of menstrual dysfunction compared to joggers and controls.
  • Lower body fat percentage and altered hormone levels were noted in the runner group.

    • Conclusions:

    • Menstrual dysfunction is a significant issue for female distance runners.
    • Decreased body fat and/or impaired ovarian function, potentially due to hypothalamic or pituitary hormone changes, are likely contributing factors.