None listed
Conditions
Interventions
In menstrual cycle 1, a steam heat sheet will be applied to the lower abdomen for 8 hours per day for approximately 20 days (from the menstrual phase through the implantation period). Menstrual cycle
Sponsors
Kao Corporation
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Females aged 20-49 years. 2. Regular menstrual cycles (cycle length 25-38 days, with month-to-month variability generally within +/-3 days) and able to report the dates/durations of the three most recent menstrual periods. 3. No history of gynecological disorders (e.g., uterine fibroids, adenomyosis, endometriosis, cervical intraepithelial neoplasia, cervical cancer, etc.).
Exclusion criteria
Exclusion criteria: 1. Presence of hepatic, renal, cardiac, respiratory, endocrine, metabolic (e.g., hypertension), neurological disorders, disorders of consciousness, diabetes, or other medical conditions that would preclude participation in the study. 2. Received medication therapy or surgery for a serious illness or injury within one month prior to study initiation and judged by the principal investigator or study staff to be unsuitable for participation. 3. Inability to maintain consistent (unchanged) intake/exercise habits regarding specified health foods, Foods with Function Claims, or dietary supplements (e.g., capsules) from one month prior to study initiation. 4. Participation in another clinical trial of drugs or food products within the past month, or planned participation in such a trial during this study. 5. Non-regular day workers (i.e., those who have night-shift rotations). 6. Receiving hormone replacement therapy (HRT) or taking medications that may affect hormonal status (including oral contraceptives). 7. Routinely applying external warming (e.g., disposable heat packs [kairo]) or receiving acupuncture/moxibustion to sites other than the study site (lower abdomen), or planning to perform such warming during the study period. 8. Pregnant, breastfeeding, or planning to become pregnant during the study period. 9. History of eczema or urticaria induced by heat. 10. Impaired thermal sensation or hypersensitivity to temperature. 11. Known sensitivity to adhesive products (e.g., plasters/bandages) or a history of contact dermatitis from adhesive materials. 12. Any other condition judged by the principal investigator or study staff to render the participant unsuitable for the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Perceived effects with and without steam heat sheets | — |
Secondary
| Measure | Time frame |
|---|---|
| Investigation of characteristic changes in individuals who experienced benefit from lower-abdominal warming with steam heat sheets. Changes in body temperature, blood flow, and blood pressure with and without steam heat sheets. | — |
Countries
Japan
Contacts
Public ContactMai Tsunoda
Kao Corporation Human Health Care Products Research
Outcome results
None listed