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Value of subcutaneous fat in predicting ovulation day
Malaysian Journal of Reproductive Health : a Publication of the Reproductive Research Centre of the National Population and Family Development Board, Malaysia
|June 1, 1988
Summary
Body fat and Quetelet's Indices (QI) fluctuate with the menstrual cycle. Higher progesterone relative to estrogen levels during the luteal phase are linked to increased body fat in women.
Area of Science:
- Endocrinology
- Human Physiology
- Body Composition Analysis
Background:
- Body fat and body mass indices exhibit cyclical variations in women.
- Hormonal fluctuations during the menstrual cycle are known to influence various physiological parameters.
Purpose of the Study:
- To investigate the relationship between menstrual cycle phases and changes in subcutaneous body fat and Quetelet's Indices (QI).
- To explore the hormonal underpinnings of these body composition changes.
Main Methods:
- Measurement of subcutaneous body fat and QI in 52 healthy female volunteers aged 18-29.
- Grouping of data according to menstrual cycle phases: early/late follicular and early/late luteal.
- Correlation analysis with hormonal surges (LH, FSH, estrogen, progesterone).
Main Results:
- Subcutaneous body fat decreased in the late follicular phase and increased significantly in the early luteal phase.
- Quetelet's Indices mirrored the changes observed in subcutaneous body fat.
- Hormonal shifts, particularly the progesterone to estrogen ratio, correlated with body fat variations.
Conclusions:
- Progesterone dominance relative to estrogen during the early luteal phase appears to increase body fat.
- Findings suggest potential implications for hormonal contraception and ovulation prediction.
Keywords:
AnthropometryAsiaBiologyBody Weight--changesContraceptionContraceptive MethodsDeveloping CountriesEndocrine SystemEstrogens--changesExaminations And DiagnosesFamily PlanningFollicle Stimulating HormoneGonadotropinsGonadotropins, PituitaryHormonesLaboratory Examinations And DiagnosesLaboratory ProceduresLuteinizing HormoneMalaysiaMeasurementMenstrual CycleMenstruationOral ContraceptivesOvulationOvulation DetectionPhysiologyProgestational HormonesProgesterone--changesReproductionResearch MethodologySoutheastern Asia