Thermal behavior, thermal comfort, thermal sensation, physiology
Conditions
Interventions
Cold and heat exposure during three trials:
1. Protocol A is composed of a neutral-to-warm transition in ambient temperature (24°C to 32°C, with 4 K/h)
2. Protocol B is composed of a neutral-to-cold transition in ambient temperature (24°C to 16°C, with 4 K/h)
3. During protocol C ambient temperature will be varied between three fixed temperatures (16°C, 24°C and 32°C).
Sponsors
Maastricht University Medical Center (MUMC+)
Eligibility
Inclusion criteria
Inclusion criteria: 1. Caucasian healthy females on oral contraceptive; 2. Age: 18 to 30 years; 3. BMI: 20-25; 4. Fat percentage: 20-30%.
Exclusion criteria
Exclusion criteria: 1. Regular medication use; 2. Pregnancy; 3. Hypertension (systolic/diastolic blood pressure >140/90); 4. Hypotension (systolic/diastolic blood pressure <90/60); 5. General feeling of illness at day of experiment; 6. (History of) cardiovascular diseases; 7. In the presence of any known or suspected obstructive disease of the gastrointestinal tract, including but not limited to diverticulitis and inflammatory bowel disease; 8. A history of disorders or impairement of the gag reflex; 9. Previous gastrointestinal surgery; 10. Hypo motility disorders of the gastrointestinal tract including but not limited to Illeus.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. The intention of thermoregulatory behavior, using a questionnaire; 2. Energy expenditure, as measured using indirect calorimetry in a climate controlled respiration chamber. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Thermal comfort, using a questionnaire with a VAS; 2. Thermal sensation, using a questionnaire with a VAS; 3. Thermal environment, using a questionnaire with a VAS; 4. Skin temperature, using iButtons; 5. Core temperature, using an ingestible pill; 6. Skin perfusion, using Laser Doppler Flowmetry; 7. Blood parameters. | — |
Contacts
Public ContactChristel Jacquot
Universiteitssingel 50
Outcome results
None listed