Noticias | Un estudio revela que el IMC puede afectar los ciclos menstruales y que un IMC de 20 podría estar relacionado con una ovulación óptima
Recent investigación halló a significant association between mujeres's índice de masa corporal (BMI) y menstrual-cycle regularity. Maintaining a BMI around 20 puede be an optimal range for ovulación y fertilidad.
Published en npj Women’s Health, the estudio analyzed real-world data de more than 8,700 mujeres en Japan using the LunaLuna menstrual-tracking app. It covered 191,426 complete ciclos menstruales, making it one de the largest studies de its kind.
Menstrual Cycles Become Less Regular as BMI Moves Up o Down
El ciclo menstrual se considera un indicador de la salud de la mujer. Its regularity depends on stability de the hypothalamic-pituitary-ovárica (HPO) axis. A BMI that es either too high o too low puede disrupt this system, causing anovulación, amenorrhea, o irregular cycles.
The estudio halló a significantly mayor riesgo de amenorrhea among mujeres con a BMI below 19 o above 26. Participants con a BMI de 20 had the shortest y most regular average cycles.
Métodos y participantes del estudio
The estudio used menstrual data collected through the LunaLuna app de January 2019 para March 2021. Participants completed two surveys covering salud, lifestyle, education, y employment.
Of 10,465 users who completed both surveys, investigacióners excluded those con an extreme BMI (<15 o >35), pregnant mujeres, those receiving infertilidad tratamiento, users de hormonal anticoncepción o intrauterino devices, y those recording fewer than three cycles. The final analysis included 8,745 mujeres y 191,426 cycles.
Another 3,221 mujeres provided basal body temperature (BBT) data para assess ovulación. A luteal-phase average temperature 0.3°C mayor than the follicular-phase average was classified as a biphasic cycle, indicating ovulación.
Hallazgo clave: los indicadores reproductivos fueron mejores con un IMC de 20
El equipo used restricted cubic spline models para analyze cycle length (CL), amenorrhea (AMB), infrequent menstruation (IMB), y the proportion de biphasic cycles.
Los resultados mostraron:
Women con a BMI ≤16 o ≥30 had ciclos menstruales averaging 1.03–1.06 días longer than mujeres con a BMI de 20;
Amenorrhea riesgo was significantly mayor con a BMI ≤19 o ≥26;
Compared con mujeres en the normal BMI range, the likelihood de infrequent menstruation (cycles ≥39 but <90 días) was 56% mayor among mujeres who were overpeso y 163% mayor among those con obesity;
The proportion de biphasic cycles followed an inverted J-shaped relationship: it was highest at BMI 20, while ovulatory function gradually declined above o below that level.
En resumen, tanto el peso corporal bajo como el alto se asociaron estrechamente con una disfunción ovulatoria, que puede afectar la fertilidad.
Nota de los expertos: pequeñas diferencias en el IMC pueden tener efectos importantes
The data were limited para Japan. Because the relationship between body fat y BMI differs among populations, the team noted that the findings require further validation before being generalized worldwide.
The estudio also relied on self-reported BMI, creating some riesgo de bias, y app users puede differ de the general population. Future investigación should account for these limitations.
Even so, the overall conclusion was clear: small departures de the observed BMI range puede significantly increase the riesgo de irregular menstruation y anovulación. For mujeres seeking para support fertilidad, a BMI around 20 puede be an important optimal point.
Fuente de la historia:
Recopilado en internet
Autor LinkedIVF TeamPublicado 2025-04-08
本文使用 AI 輔助整理；LinkedIVF 尚未記錄本篇的編輯審核，不構成醫療建議。
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Noticias | Un estudio revela que el IMC puede afectar los ciclos menstruales y que un IMC de 20 podría estar relacionado con una ovulación óptima
Noticias | Un estudio revela que el IMC puede afectar los ciclos menstruales y que un IMC de 20 podría estar relacionado con una ovulación óptima
Recent investigación halló a significant association between mujeres's índice de masa corporal (BMI) y menstrual-cycle regularity. Maintaining a BMI around 20 puede be an optimal range for ovulación y fertilidad.
Published en npj Women’s Health, the estudio analyzed real-world data de more than 8,700 mujeres en Japan using the LunaLuna menstrual-tracking app. It covered 191,426 complete ciclos menstruales, making it one de the largest studies de its kind.
Menstrual Cycles Become Less Regular as BMI Moves Up o Down
El ciclo menstrual se considera un indicador de la salud de la mujer. Its regularity depends on stability de the hypothalamic-pituitary-ovárica (HPO) axis. A BMI that es either too high o too low puede disrupt this system, causing anovulación, amenorrhea, o irregular cycles.
The estudio halló a significantly mayor riesgo de amenorrhea among mujeres con a BMI below 19 o above 26. Participants con a BMI de 20 had the shortest y most regular average cycles.
Métodos y participantes del estudio
The estudio used menstrual data collected through the LunaLuna app de January 2019 para March 2021. Participants completed two surveys covering salud, lifestyle, education, y employment.
Of 10,465 users who completed both surveys, investigacióners excluded those con an extreme BMI (<15 o >35), pregnant mujeres, those receiving infertilidad tratamiento, users de hormonal anticoncepción o intrauterino devices, y those recording fewer than three cycles. The final analysis included 8,745 mujeres y 191,426 cycles.
Another 3,221 mujeres provided basal body temperature (BBT) data para assess ovulación. A luteal-phase average temperature 0.3°C mayor than the follicular-phase average was classified as a biphasic cycle, indicating ovulación.
Hallazgo clave: los indicadores reproductivos fueron mejores con un IMC de 20
El equipo used restricted cubic spline models para analyze cycle length (CL), amenorrhea (AMB), infrequent menstruation (IMB), y the proportion de biphasic cycles.
Los resultados mostraron:
Women con a BMI ≤16 o ≥30 had ciclos menstruales averaging 1.03–1.06 días longer than mujeres con a BMI de 20;
Amenorrhea riesgo was significantly mayor con a BMI ≤19 o ≥26;
Compared con mujeres en the normal BMI range, the likelihood de infrequent menstruation (cycles ≥39 but <90 días) was 56% mayor among mujeres who were overpeso y 163% mayor among those con obesity;
The proportion de biphasic cycles followed an inverted J-shaped relationship: it was highest at BMI 20, while ovulatory function gradually declined above o below that level.
En resumen, tanto el peso corporal bajo como el alto se asociaron estrechamente con una disfunción ovulatoria, que puede afectar la fertilidad.
Nota de los expertos: pequeñas diferencias en el IMC pueden tener efectos importantes
The data were limited para Japan. Because the relationship between body fat y BMI differs among populations, the team noted that the findings require further validation before being generalized worldwide.
The estudio also relied on self-reported BMI, creating some riesgo de bias, y app users puede differ de the general population. Future investigación should account for these limitations.
Even so, the overall conclusion was clear: small departures de the observed BMI range puede significantly increase the riesgo de irregular menstruation y anovulación. For mujeres seeking para support fertilidad, a BMI around 20 puede be an important optimal point.
Fuente de la historia:
Recopilado en internet