Stress and Menstrual Health
The Influence of Non-energetic Stressors on Human Menstrual Function
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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North Carolina
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Durham, North Carolina, Forenede Stater, 27708
- Rekruttering
- Duke University
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Kontakt:
- Mary Joy
- Telefonnummer: 7249317802
- E-mail: mary.joy@duke.edu
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-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Adult pre-menopausal females, 22-38 years old with a BMI of 18.5-30.0
- Habitually sedentary (less than 60 minutes MVPA/week) for Exercise cohort
Exclusion Criteria:
- Individuals on hormonal birth control (oral contraception, injection, implant, or intrauterine device)
- Individuals with incidence in the last 6 months of childbirth, lactation, pregnancy, or functional hypothalamic amenorrhea (FHA)
- Individuals with a BMI <18.5 or >30.0
- Individuals with reproductive disorders (e.g. endometriosis, polycystic ovarian syndrome (PCOS))
- Individuals taking thyroid medications
- Individuals who have undergone or are undergoing menopause
- MVPA >60 min/week (for Exercise cohort)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: Heat Stress
Heat stress via 70-80°C sauna exposure for 45-min sessions on 5 consecutive days (days 4-8 or 5-9 of follicular phase).
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Stress-Heat participants will undergo supervised 40-min sessions in a 70-80˚C sauna
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Eksperimentel: Sleep Stress
Sleep restriction to 4-6 hours/night for 5 consecutive nights (on days 3-8 or 4-9 of follicular phase).
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Stress-Sleep participants will be asked to sleep for between 4 and 6 hours per night, with compliance monitored via their activity monitors and self-reported sleep diaries.
Participants will be requested to maintain normal wake cycles without midday sleep.
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Eksperimentel: Exercise Stress
One-hour cycling at 60-75% predicted max HR for 5 consecutive days (days 4-8 or 5-9 of follicular phase).
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Stress-Exercise participants will come to the Pontzer Lab to complete a one-hour cycling workout on a Lode Corival CPET ergometer/exercise bike at 60-75% predicted maximum heart rate.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Basal metabolic rate (BMR)
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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BMR (kcal/d) will be estimated via indirect calorimetry.
Participants will be asked to come in for a lab visit on a day of their choice within 2-7 days post-ovulation prior to consuming breakfast or any non-water beverage and after having refrained from exercise for 24 hours pre-measurement.
Participants will lie on an exam bed in the Pontzer Lab and have a clear plastic hood connected to a COSMED Quark RMR machine placed over their head for approximately 25-30 minutes.
This hood will collect exhaled air, which will be measured for CO2 production to estimate BMR.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Sex hormone concentration (estradiol)
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samples will be assayed via enzyme-linked immunosorbent assay (ELISA) in the Pontzer Lab.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Sex hormone concentration (progesterone)
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samples will be assayed via enzyme-linked immunosorbent assay (ELISA) in the Pontzer Lab.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Total daily energy expenditure (TDEE)
Tidsramme: Control (Month 3), Intervention (Month 4)
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TDEE (kcal) will be measured over a 7-day period during the Baseline and first Intervention month using the doubly-labeled water (DLW) method.
DLW is a safe and reliable method for capturing free-living TDEE and has been validated for human studies.
The DLW method adds a known amount of stable isotopes, oxygen-18 (18O) and deuterium (2H), to a participant's total body water (TBW) via ingestion and then measures the depletion rate of these isotopes as they are removed from the body via urine and exhalation.
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Control (Month 3), Intervention (Month 4)
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Stress hormone concentration (norepinephrine)
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samples will be assayed via enzyme-linked immunosorbent assay (ELISA) in the Pontzer Lab.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Stress hormone concentration (cortisol)
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samples will be assayed via enzyme-linked immunosorbent assay (ELISA) in the Pontzer Lab.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Stress hormone concentration (salivary alpha-amylase)
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samples will be assayed via enzyme-linked immunosorbent assay (ELISA) in the Pontzer Lab.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Sex hormone concentration (luteinizing hormone (LH))
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samples will be assayed via enzyme-linked immunosorbent assay (ELISA) in the Pontzer Lab.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Sex hormone concentration (follicle-stimulating hormone (FSH))
Tidsramme: Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samples will be assayed via enzyme-linked immunosorbent assay (ELISA) in the Pontzer Lab.
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Baseline (Month 2), Control (Month 3), Intervention (Months 4-5), and Follow-up (Month 6)
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Herman Pontzer, PhD, Duke University Evolutionary Anthropology Department
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- Pro00119656
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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