BehaviorCoVaNCT06908447
Cold Water and Decision-Making
A study testing Cold-water immersion in people with Behavior and Stress, run by German Institute of Human Nutrition at 1 site in Germany.
Trial 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. Read more about this study
- Who is it for?
- Ages 18 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Behavior, Stress, Quality of Life
- What is being tested?
- Cold-water immersion
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteGermany
- Study dates
- 28 Aug 2025to 31 Dec 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- 18-40 years of age
- Consent to participate
- Fluency in German
- Physically and mentally healthy
- BMI 18-30 kg/m2
- Normal day-night rhythm
Who cannot join
- Raynaud syndrome
- Cold urticaria
- High resting heart rate (>160 beats per minute)
- Acute infection
- Diagnosed current or former illnesses of
- Brain and mind
Show all 23Show fewer
- 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)
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Trust Centre of the Human Study Centre Recruitment Officer contact
Germany1 site, 1 recruiting
- Recruiting
German Institute of Human Nutrition Potsdam-Rehbruecke
Nuthetal
Recruitment Officer, +4933200 882753, CoVa-Studie@dife.de
About this study
Official title: Voluntary Cold-Water Immersion Effects on Value-Based Choice
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.
Read the detailed description
This randomized within-subject cross-over design behavioral study in cognitive neuroscience will employ an acute peripheral physiological intervention, i.e., a 10-minute full-body cold-water (10-16°C) immersion vs. a control condition (10 min @ 30- 36°C water) on two visits separated by approx. 30 days.
Forty eligible female and male participants will be subject to a head-out full-body cold-water immersion or a warm-water condition (control) on two visits. Participants will perform resting-state and task-based non-invasive electrophysiological recordings of the heart, pulse, respiration, skin conductance, and pupil, will undergo thermographic imaging, pre- and post-immersion blood sampling (4 time points), engage in two computer-based decision-making tasks (reinforcement learning task, risk decision-making task), a brief food choice task, and receive a battery of psychometric questionnaires. The visits are separated by approximately 30 days and do not differ in their timeline except for the primary intervention, i.e., cold vs warm-water immersion, and the medical screening on visit 1.
- Conditions
- Behavior, Stress, Quality of Life, Psychological Wellbeing
- Being tested
- Cold-water immersion, Warm-water immersion (Control)
- Keywords
- Decision-Making, Psychology, Stress, Cold-Exposure, Cold-Water Immersion
- Medical subject headings
- Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Cold-water immersionBehavioural
Single 10-minute acute full-body head-out single arm-out cold-water immersion at 10-16°C on the experimental day
Warm-water immersion (Control)Behavioural
Single 10-minute acute full-body head-out single arm-out cold-water immersion at 30-36°C on the experimental day
| Study group | Role | What they receive |
|---|---|---|
| Cold-water immersion | Experimental | Not described Receives: Behavioral: Cold-water immersion |
| Warm-water immersion (Control) | Experimental | Not described Receives: Behavioral: Warm-water immersion (Control) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Risk propensity
Risk propensity, i.e., the ratio between risky and non-risky choices for each monetary value as measured in the risk decision-making task in the cold-water vs warm-water condition as described in Liu et al. (2021)
Measured: On day 1 and after 30 days
Behavioral range adaptation
Participants will perform a computer-based reinforcement learning task described in Gueguen et al. (2024) to assess reward sensitivity in different monetary contexts. Behavioral range adaptation, which reflects value range-dependent, relative reward valuation, may be altered if reward processing itself is changed through a potent shift in the physiological state. To test whether reward processing is altered after cold vs warm water exposure, the extent to which range adaptation and reference-point centering occurs will be quantified using computational modeling methods.
Measured: On day 1 and after 30 days
Food choice
Participants will be provided an ad libitum restaurant-like breakfast meal during which they can order various food items (e.g., bread, yogurts, cookies) in the desired amount. The ingested food type, nutritional value, and amount will be quantified to assess food preference after cold vs warm water exposure by linking the consumed food with a standardized food database (German Nutrient Database, Bundeslebensmittelschlüssel).
Measured: On day 1 and after 30 days
Heart-rate variability
Task-based and resting-state heart-rate variability, measured with a three-point electrocardiogram (ECG)
Measured: On day 1 and after 30 days
Heart rate
Task-based and resting-state heart rate, measured with ECG
Measured: On day 1 and after 30 days
Respiration rate
Task-based and resting-state respiration rate, measured via a respiration belt
Measured: On day 1 and after 30 days
Relative amplitude of the respiratory signal
Task-based and resting-state relative respiratory amplitude, measured via a respiratory belt
Measured: On day 1 and after 30 days
Event-related skin conductance responses
Phasic electrodermal activity, measured via electrodermal activity (EDA) electrodes
Measured: On day 1 and after 30 days
Tonic skin conductance
Tonic task-based and resting-state electrodermal activity, measured with EDA electrodes
Measured: On day 1 and after 30 days
Pupil dilation
Task-based and resting-state pupil dilation, measured via eye-tracking
Measured: On day 1 and after 30 days
Skin temperature
Thermographic imaging of the face, full-body, supraclavicular, and scapular area using a thermal camera pre-, during, and post-immersion
Measured: On day 1 and after 30 days
Plasma concentration of large neutral amino acids
Large neutral amino acid (LNAA) plasma concentration will be assessed via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Measured: On day 1 and after 30 days
Plasma concentration of catecholamines
Catecholamines via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Measured: On day 1 and after 30 days
Plasma concentration of cortisol
Cortisol via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Measured: On day 1 and after 30 days
Identification of epigenetic markers associated with acute cold exposure
Epigenetic markers (micro-RNA) via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Measured: On day 1 and after 30 days
Perceived control
Psychological changes in perceived control, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived control.
Measured: On day 1 and after 30 days
Perceived freedom
Psychological changes in perceived freedom, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived freedom.
Measured: On day 1 and after 30 days
Perceived stress
Psychological changes in perceived stress, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived stress.
Measured: On day 1 and after 30 days
State of flow
Psychological changes in perceived state of flow, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating a high state of flow.
Measured: On day 1 and after 30 days
Self-efficacy
Psychological changes in self-efficacy, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high self-efficacy.
Measured: On day 1 and after 30 days
Perceived pain
Psychological changes in perceived pain, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived pain.
Measured: On day 1 and after 30 days
Emotions
Psychological changes in emotions and their bodily origins, measured via self-reports pre- and post-immersion. Measures will be drawn on a virtual body using an adapted version of the Nummenmaa et al. (2014) emBODY tool with red color indicating increased perception and blue indicating decreased perception.
Measured: On day 1 and after 30 days
Positive affect and negative affect questionnaire
Psychological changes in affect, measured semi-continuously via the Positive Affect Negative Affect (PANAS) questionnaire to be filled out pre- and post-immersion. Measures for each item range from 1 (not at all) to 5 (very much) with 5 indicating the highest feeling perceived at the moment.
Measured: On day 1 and after 30 days
Secondary outcomes (8)
Trait autonomy questionnaire
Trait autonomy is assessed via the Basic Psychological Need Satisfaction and Frustration Scale (BPNSFS). Measures range from 1 (not at all true) to 5 (totally true) with 5 indicating the highest score.
Measured: On day 1 and after 30 days
Emotion regulation questionnaire
Emotion regulation, assessed via the Emotion Regulation Questionnaire (ERQ). Measures range from 1 (not at all true) to 7 (totally true) with 7 indicating the highest score.
Measured: On day 1 and after 30 days
Causality orientation questionnaire
Causality orientation, assessed via the General Causality Orientations Scale (GCOS). Measures range from 1 (very unlikely) to 6 (very likely) with 6 indicating the highest probability of responding as the item describes in the vignette scenario.
Measured: On day 1 and after 30 days
Delay discounting questionnaire
Delay discounting is assessed via the Delay Discounting Test by Kirby. Response options to each item are binary with one option corresponding to an immediate reward (e.g., 14 EUR today) and the second option corresponding to a higher but delayed reward (e.g., 19 EUR in 60 days).
Measured: On day 1 and after 30 days
Interoceptive awareness questionnaire
Interoceptive awareness, assessed via the Multidimensional Assessment of Interoceptive Awareness (MAIA) questionnaire. Measures range from 0 (never) to 5 (always) with 5 indicating the highest response.
Measured: On day 1 and after 30 days
Generalized self-efficacy questionnaire
Generalized self-efficacy, assessed via the Self-Efficacy Scale (SWE). Measures range from "not at all true", "hardly true", "moderately true" and "exactly true". A higher score, indicated by a preference for "exactly true", indicated more self-efficacy.
Measured: On day 1 and after 30 days
Trait and state anxiety questionnaire
Trait and state anxiety, assessed via the State-Trait Anxiety Inventory (STAI-S and STAI-T). State anxiety is assessed on a scale from 1 (not at all) to 8 (very much) with a higher score indicating high state anxiety. Trait anxiety is assessed on a scale from 0 (almost never) to 3 (almost always) with a higher score indicating high trait anxiety.
Measured: On day 1 and after 30 days
Well-being questionnaire
Psychological well-being is assessed via the short version of the Warwick-Edinburgh Mental Well-Being Scale (SWEMWBS). Responses range from "never" to "always" on a 5-point scale with a high score indicating higher mental well-being in the past two weeks.
Measured: On day 1 and after 30 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Apr 2025
- Study start28 Aug 2025
- Primary completion31 Dec 2026 (estimated)
- Study completion31 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for BehaviorStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 40 participants (estimated)
Sponsor and investigators
- Lead sponsor
- German Institute of Human Nutrition
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Prof. Dr. Soyoung Q Park, German Institute of Human Nutrition
- Investigators
- Soyoung Q Park, Prof. Dr., Principal investigator, German Institute of Human Nutrition Potsdam-Rehbruecke
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06908447
- Sponsor's protocol ID
- CoVa
- Other IDs
- 01GP2210C
- Acronym
- CoVa
- Status last verified
- Sep 2025
- First submitted
- 18 Mar 2025
- Last updated
- 21 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 21 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Voluntary Cold-Water Immersion Effects on Value-Based Choice
- ClinicalTrials.gov ID
- NCT06908447
- Acronym / sponsor ID
- CoVa / CoVa
- Conditions
- Behavior, Stress, Quality of Life, Psychological Wellbeing
- Keywords
- Decision-Making, Psychology, Stress, Cold-Exposure, Cold-Water Immersion
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 40 participants (estimated)
- Lead sponsor
- German Institute of Human NutritionUniversity, hospital or other
- Study start
- 28 Aug 2025 (actual)
- Primary completion
- 31 Dec 2026 (estimated)
- Study completion
- 31 Dec 2026 (estimated)
- First posted
- 3 Apr 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
This randomized within-subject cross-over design behavioral study in cognitive neuroscience will employ an acute peripheral physiological intervention, i.e., a 10-minute full-body cold-water (10-16°C) immersion vs. a control condition (10 min @ 30- 36°C water) on two visits separated by approx. 30 days.
Forty eligible female and male participants will be subject to a head-out full-body cold-water immersion or a warm-water condition (control) on two visits. Participants will perform resting-state and task-based non-invasive electrophysiological recordings of the heart, pulse, respiration, skin conductance, and pupil, will undergo thermographic imaging, pre- and post-immersion blood sampling (4 time points), engage in two computer-based decision-making tasks (reinforcement learning task, risk decision-making task), a brief food choice task, and receive a battery of psychometric questionnaires. The visits are separated by approximately 30 days and do not differ in their timeline except for the primary intervention, i.e., cold vs warm-water immersion, and the medical screening on visit 1.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Cold-water immersion | Experimental | Behavioral: Cold-water immersion |
| Warm-water immersion (Control) | Experimental | Behavioral: Warm-water immersion (Control) |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- 18-40 years of age
- Consent to participate
- Fluency in German
- Physically and mentally healthy
- BMI 18-30 kg/m2
Key exclusion criteria (23 listed)
- Raynaud syndrome
- Cold urticaria
- High resting heart rate (>160 beats per minute)
- Acute infection
- Diagnosed current or former illnesses of
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Cold-water immersionSingle 10-minute acute full-body head-out single arm-out cold-water immersion at 10-16°C on the experimental day | Behavioural | Cold-water immersion |
| Warm-water immersion (Control)Single 10-minute acute full-body head-out single arm-out cold-water immersion at 30-36°C on the experimental day | Behavioural | Warm-water immersion (Control) |
Primary outcome
Risk propensity
Time frame: On day 1 and after 30 days
Risk propensity, i.e., the ratio between risky and non-risky choices for each monetary value as measured in the risk decision-making task in the cold-water vs warm-water condition as described in Liu et al. (2021)
Behavioral range adaptation
Time frame: On day 1 and after 30 days
Participants will perform a computer-based reinforcement learning task described in Gueguen et al. (2024) to assess reward sensitivity in different monetary contexts. Behavioral range adaptation, which reflects value range-dependent, relative reward valuation, may be altered if reward processing itself is changed through a potent shift in the physiological state. To test whether reward processing is altered after cold vs warm water exposure, the extent to which range adaptation and reference-point centering occurs will be quantified using computational modeling methods.
Food choice
Time frame: On day 1 and after 30 days
Participants will be provided an ad libitum restaurant-like breakfast meal during which they can order various food items (e.g., bread, yogurts, cookies) in the desired amount. The ingested food type, nutritional value, and amount will be quantified to assess food preference after cold vs warm water exposure by linking the consumed food with a standardized food database (German Nutrient Database, Bundeslebensmittelschlüssel).
Heart-rate variability
Time frame: On day 1 and after 30 days
Task-based and resting-state heart-rate variability, measured with a three-point electrocardiogram (ECG)
Heart rate
Time frame: On day 1 and after 30 days
Task-based and resting-state heart rate, measured with ECG
Respiration rate
Time frame: On day 1 and after 30 days
Task-based and resting-state respiration rate, measured via a respiration belt
Relative amplitude of the respiratory signal
Time frame: On day 1 and after 30 days
Task-based and resting-state relative respiratory amplitude, measured via a respiratory belt
Event-related skin conductance responses
Time frame: On day 1 and after 30 days
Phasic electrodermal activity, measured via electrodermal activity (EDA) electrodes
Tonic skin conductance
Time frame: On day 1 and after 30 days
Tonic task-based and resting-state electrodermal activity, measured with EDA electrodes
Pupil dilation
Time frame: On day 1 and after 30 days
Task-based and resting-state pupil dilation, measured via eye-tracking
Skin temperature
Time frame: On day 1 and after 30 days
Thermographic imaging of the face, full-body, supraclavicular, and scapular area using a thermal camera pre-, during, and post-immersion
Plasma concentration of large neutral amino acids
Time frame: On day 1 and after 30 days
Large neutral amino acid (LNAA) plasma concentration will be assessed via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Plasma concentration of catecholamines
Time frame: On day 1 and after 30 days
Catecholamines via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Plasma concentration of cortisol
Time frame: On day 1 and after 30 days
Cortisol via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Identification of epigenetic markers associated with acute cold exposure
Time frame: On day 1 and after 30 days
Epigenetic markers (micro-RNA) via blood sampling at 4 time points (pre-immersion to 120 min post-immersion)
Perceived control
Time frame: On day 1 and after 30 days
Psychological changes in perceived control, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived control.
Perceived freedom
Time frame: On day 1 and after 30 days
Psychological changes in perceived freedom, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived freedom.
Perceived stress
Time frame: On day 1 and after 30 days
Psychological changes in perceived stress, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived stress.
State of flow
Time frame: On day 1 and after 30 days
Psychological changes in perceived state of flow, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating a high state of flow.
Self-efficacy
Time frame: On day 1 and after 30 days
Psychological changes in self-efficacy, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high self-efficacy.
Perceived pain
Time frame: On day 1 and after 30 days
Psychological changes in perceived pain, measured semi-continuously via self-reports throughout the experimental day. Measures range from 0% (not at all) to 100% (very much) with 100% indicating high perceived pain.
Emotions
Time frame: On day 1 and after 30 days
Psychological changes in emotions and their bodily origins, measured via self-reports pre- and post-immersion. Measures will be drawn on a virtual body using an adapted version of the Nummenmaa et al. (2014) emBODY tool with red color indicating increased perception and blue indicating decreased perception.
Positive affect and negative affect questionnaire
Time frame: On day 1 and after 30 days
Psychological changes in affect, measured semi-continuously via the Positive Affect Negative Affect (PANAS) questionnaire to be filled out pre- and post-immersion. Measures for each item range from 1 (not at all) to 5 (very much) with 5 indicating the highest feeling perceived at the moment.
8 secondary outcomes
Trait autonomy questionnaire
Time frame: On day 1 and after 30 days
Emotion regulation questionnaire
Time frame: On day 1 and after 30 days
Causality orientation questionnaire
Time frame: On day 1 and after 30 days
Delay discounting questionnaire
Time frame: On day 1 and after 30 days
Interoceptive awareness questionnaire
Time frame: On day 1 and after 30 days
Generalized self-efficacy questionnaire
Time frame: On day 1 and after 30 days
Trait and state anxiety questionnaire
Time frame: On day 1 and after 30 days
Well-being questionnaire
Time frame: On day 1 and after 30 days
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Apr 2026.
- Abler, B. \& Kessler, H. (2011). ERQ. Emotion Regulation Questionnaire \[Verfahrensdokumentation aus PSYNDEX Tests-Nr. 9006192 und Fragebogen\]. In Leibniz-Zentrum für Psychologische Information und Dokumentation (ZPID) (Hrsg.), Elektronisches TestarchiLink provided by the sponsor.
- Scherhorn, G., Haas, H., Hellenthal, F., \& Seibold, S. (1999). Kausalitätsorientierungen. Zusammenstellung sozialwissenschaftlicher Items und Skalen (ZIS).Link provided by the sponsor.
- Forstmeier, S., \& Maercker, A. (2011). Selbstkontrolle im höheren Erwachsenenalter: Eine deutsche Version des Delay Discounting Tests von Kirby. PPmP - Psychotherapie · Psychosomatik · Medizinische Psychologie, 61(06), e19-e33.Link provided by the sponsor.
- Bornemann, B., Herbert, B. M., Mehling, W. E., \& Singer, T. (2015). Differential changes in self-reported aspects of interoceptive awareness through 3 months of contempl tive training. Frontiers in Psychology, 5.Link provided by the sponsor.
- Jerusalem, M., \& Schwarzer, R. (2003). SWE - Skala zur Allgemeinen Selbstwirksamkeitserwartung. ZPID (Leibniz Institute for Psychology) - Open Test Archive.Link provided by the sponsor.
- Grimm, Jürgen (Hg.) (2009): State-Trait-Anxiety Inventory nach Spielberger. Deutsche Lang- und Kurzversion. - Methodenforum der Universität Wien: MF-Working Paper 2009/02Link provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Trust Centre of the Human Study Centre Recruitment Officer contact
Soyoung Q Park, Prof. Dr. principal investigator
German Institute of Human Nutrition Potsdam-Rehbruecke
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Cold-water immersion in people with Behavior and Stress, run by German Institute of Human Nutrition at 1 site in Germany.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 23 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 21 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Trust Centre of the Human Study Centre Recruitment Officer (+4933200 882753, CoVa-Studie@dife.de), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Risk propensity (time frame: On day 1 and after 30 days). The study lists 23 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Apr 2026.