| NCT ID | NCT06908447 |
| Status | Recruiting |
| Phase | — |
| Sponsor | German Institute of Human Nutrition |
| Condition | Behavior |
| Study Type | INTERVENTIONAL |
| Enrollment | 40 participants |
| Start Date | 2025-08-28 |
| Primary Completion | 2026-12-31 |
Eligibility & Interventions
Eligibility Fast-Check
Enter your details for a quick preliminary check. This does not replace medical advice.
What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 40 participants in total. It began in 2025-08-28 with a primary completion date of 2026-12-31.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
The behavioral within-subject cross-over design study "CoVa" aims to investigate the effect of a short-term full-body cold-water immersion vs. warm-water immersion control on value-based choice, psychological well-being, and peripheral physiology.
Eligibility Criteria
Inclusion Criteria: * 18-40 years of age * Consent to participate * Fluency in German * Physically and mentally healthy * BMI 18-30 kg/m2 * Normal day-night rhythm Exclusion Criteria: * Raynaud syndrome * Cold urticaria * High resting heart rate (\>160 beats per minute) * Acute infection * Diagnosed current or former illnesses of * Brain and mind * Heart and blood circulation * Gastrointestinal system * Endocrine system * Other serious past or present medical conditions * Wearing of medical devices (e.g., pacemaker) * Fear of blood, needles, or phlebotomy * Allergies to plasters, gels, and other medical equipment * Allergies to commercially available liquid meals (e.g., shakes, yfood Labs GmbH) * Recurrent intake of medication which affect metabolism * Regular nicotine consumption (e.g., vaping, cigarettes) * Excessive alcohol consumption (\>14 servings/week) * Recent illegal drug consumption (within 2 weeks prior) * Strong mental or physical stress * Excessive exercise (\>2 h high-intensity exercise/day) * Pregnancy or breastfeeding * Inability to wear skin-exposing swimwear, e.g., for religious reasons * Affinity for winter swimming, cryotherapy, breathwork (\>3 times/year)
Contact & Investigator
Soyoung Q Park, Prof. Dr.
PRINCIPAL INVESTIGATOR
German Institute of Human Nutrition Potsdam-Rehbruecke
Frequently Asked Questions
Who can join the NCT06908447 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, up to 40 Years, studying Behavior. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT06908447 currently recruiting?
Yes, NCT06908447 is actively recruiting participants. Contact the research team at CoVa-Studie@dife.de for enrollment information.
Where is the NCT06908447 trial being conducted?
This trial is being conducted at Nuthetal, Germany.
Who is sponsoring the NCT06908447 clinical trial?
NCT06908447 is sponsored by German Institute of Human Nutrition. The principal investigator is Soyoung Q Park, Prof. Dr. at German Institute of Human Nutrition Potsdam-Rehbruecke. The trial plans to enroll 40 participants.