A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Influence of Menstrual Cycle or Hormonal Contraceptive Phase on Energy Intake and Metabolic Hormones : A Pilot Study (2021)


Ihalainen, J. K., Löfberg, I., Kotkajuuri, A., Kyröläinen, H., Hackney, A. C., & Taipale-Mikkonen, R. S. (2021). Influence of Menstrual Cycle or Hormonal Contraceptive Phase on Energy Intake and Metabolic Hormones : A Pilot Study. Endocrines, 2(2), 79-90. https://doi.org/10.3390/endocrines2020008


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Ihalainen, Johanna K.; Löfberg, Ida; Kotkajuuri, Anna; Kyröläinen, Heikki; Hackney, Anthony C.; Taipale-Mikkonen, Ritva S.

Lehti tai sarja: Endocrines

eISSN: 2673-396X

Julkaisuvuosi: 2021

Ilmestymispäivä: 16.04.2021

Volyymi: 2

Lehden numero: 2

Artikkelin sivunumerot: 79-90

Kustantaja: MDPI AG

Julkaisumaa: Sveitsi

Julkaisun kieli: englanti

DOI: https://doi.org/10.3390/endocrines2020008

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/75153


Tiivistelmä

Sex hormones are suggested to influence energy intake (EI) and metabolic hormones. This study investigated the influence of menstrual cycle (MC) and hormonal contraceptive (HC) cycle phases on EI, energy availability (EA), and metabolic hormones in recreational athletes (eumenorrheic, NHC = 15 and monophasic HC-users, CHC = 9). In addition, 72-h dietary and training logs were collected in addition to blood samples, which were analyzed for 17β-estradiol (E2), progesterone (P4), leptin, total ghrelin, insulin, and tri-iodothyronine (T3). Measurements were completed at four time-points (phases): Bleeding, mid-follicular (FP)/active 1, ovulation (OVU)/active 2, mid-luteal (LP)/inactive in NHC/CHC, respectively. As expected, E2 and P4 fluctuated significantly in NHC (p < 0.05) and remained stable in CHC. In NHC, leptin increased significantly between bleeding and ovulation (p = 0.030) as well as between FP and OVU (p = 0.022). No group differences in other measured hormones were observed across the MC and HC cycle. The mean EI and EA were similar between phases, with no significant differences observed in macronutrient intake over either the MC or HC. While the MC phase might have a small, but statistically significant effect on leptin, the findings of the present study suggest that the MC or HC phase does not significantly alter ad libitum EI or EA in recreational athletes.


YSO-asiasanat: hormonit; sukupuolihormonit; progesteroni; leptiini; greliini; kuukautiset; kuukautiskierto; aineenvaihdunta; energiansaanti; urheilijat; suorituskyky

Vapaat asiasanat: sex hormones; estradiol; progesterone; energy availability; leptin; ghrelin


Liittyvät organisaatiot


Hankkeet, joissa julkaisu on tehty


OKM-raportointi: Kyllä

Raportointivuosi: 2021


Viimeisin päivitys 2022-17-06 klo 10:23