heat illness
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Postmenopausal group inclusion criteria -Age: 50-65 years -BMI: 18.5-30 kg/m2 -At least 12 months have passed since the final menstrual period -No hormone replacement therapy within the past 6 months Premenopausal group inclusion criteria -Age: 20-35 years -BMI: 18.5-30 kg/m2 -Regular menstrual cycles (25-35 days, with variation within plus or minus 3 days) -No hormonal medications within the past 3 months
Exclusion criteria
Exclusion criteria: Exclusion criteria (common to both groups) -No history of heat illness -Regular use of medications that affect thermoregulation -History of major cardiovascular, respiratory, or metabolic diseases, including hypertension with systolic blood pressure >140 mmHg -Presence of skin disorders or sweating dysfunction. -Inability to provide informed consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in rectal temperature, changes in heart rate, changes in skin temperature and mean skin temperature, onset time and rate of local sweating, and whole-body sweat loss | — |
Secondary
| Measure | Time frame |
|---|---|
| Body composition (height, weight, body fat percentage), hydration status (fluid intake, whole-body sweat loss), serum hormone levels, maximal oxygen uptake, sweat gland count, thermal sensation, rating of perceived exertion, and test duration | — |
Countries
Japan
Contacts
Waseda University Graduate School of Sport Science