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Related Experiment Videos

Menstrual dysfunction in athletes: an energetic challenge.

V J Harber1

  • 1University of Alberta, Faculty of Physical Education and Recreation, E-401 Van Vliet Centre, Edmonton, Alberta, Canada T6G 2H9. vharber@per.ualberta.ca

Exercise and Sport Sciences Reviews
|December 29, 2000
PubMed
Summary

Intense training without adequate energy intake can disrupt menstrual cycles and impair athletic performance. This study examines how low energy availability affects reproductive hormones and explores recovery methods.

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Area of Science:

  • Sports Medicine
  • Reproductive Endocrinology
  • Exercise Physiology

Background:

  • Intense training requires substantial energy.
  • Insufficient energy intake relative to expenditure leads to energy deficiency.
  • Energy deficiency is linked to fatigue, poor performance, and menstrual dysfunction in athletes.

Purpose of the Study:

  • To investigate the impact of acute and chronic energy deficiency on reproductive function.
  • To specifically examine effects on luteinizing hormone (LH) secretion.
  • To explore potential recovery strategies for athletes experiencing menstrual disturbances due to energy deficit.

Main Methods:

  • Review of existing literature on energy availability and reproductive function in athletes.
  • Analysis of studies focusing on luteinizing hormone pulsatility and secretion patterns.

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  • Examination of interventions aimed at restoring energy balance and hormonal function.

    • Main Results:

    • Reduced energy availability, both acute and chronic, significantly suppresses reproductive hormone secretion, including LH.
    • Menstrual cycle disturbances are a common consequence of sustained energy deficiency.
    • Recovery strategies involving nutritional support and modified training can restore hormonal balance.

    Conclusions:

    • Energy deficiency is a critical factor in exercise-associated menstrual dysfunction.
    • Restoring energy balance is essential for the recovery of reproductive function in female athletes.
    • Understanding these mechanisms aids in preventing and managing hormonal disruptions in sports.