Hyperthermia
Conditions
Brief summary
The best way to cool a very hot person is using cold water immersion, however, the optimization of this technique has not been established. The goal of this study is to determine differences in cooling rates among two types of cold water immersion and passive cooling following immersion.
Interventions
Following an active heating protocol, the cooling intervention includes vigorous water stirring throughout cold water immersion.
Following an active heating protocol, the cooling intervention includes no water stirring throughout cold water immersion.
Sponsors
Study design
Intervention model description
Randomized, counterbalanced, crossover design
Eligibility
Inclusion criteria
* 18-39 y old men and women * Self-reported to be healthy * Currently completes aerobic exercise at least 30 minutes a day, at least 2 days per week
Exclusion criteria
* History of any cardiovascular, neurologic, renal, or metabolic disease * History of any contraindications on the CoreTemp contraindications and warnings document * Current tobacco use or regular use within the last 2 years * Taking medications with known thermoregulatory or cardiovascular effects (e.g., aspirin, beta blockers, diuretics, psychotropics, etc.) * History of exertional heat stroke * Currently pregnant or breastfeeding * Inability to follow the rules of the protocols or understand the consent form
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Cooling rate | 20 minutes | The core temperature cooling rate |
Countries
United States