[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100585905":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":26,"centralContacts":31,"locations":41,"responsibleParty":50,"collaborators":11,"id":53,"slug":11,"hasResults":54,"nctId":55,"briefTitle":56,"officialTitle":57,"acronym":58,"eligibilityCriteria":59,"healthyVolunteers":60,"sex":61,"minAge":62,"maxAge":63,"enrollmentInfo":64,"targetDuration":11,"studyType":67,"phases":68,"briefSummary":70,"conditions":71,"keywords":76,"overallStatus":43,"whyStopped":11,"lastUpdateSubmitDate":81,"lastUpdatePostDateStruct":82,"startDateStruct":85,"completionDateStruct":87,"leadSponsor":89,"locationsCount":90},{"fullName":5,"class":6},"German Institute of Human Nutrition","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Cold-water immersion","EXPERIMENTAL",null,[13],"Behavioral: Cold-water immersion",{"label":15,"type":10,"description":11,"interventionNames":16},"Warm-water immersion (Control)",[17],"Behavioral: Warm-water immersion (Control)",[19,23],{"type":20,"name":9,"description":21,"armGroupLabels":22,"otherNames":11},"BEHAVIORAL","Single 10-minute acute full-body head-out single arm-out cold-water immersion at 10-16°C on the experimental day",[9],{"type":20,"name":15,"description":24,"armGroupLabels":25,"otherNames":11},"Single 10-minute acute full-body head-out single arm-out cold-water immersion at 30-36°C on the experimental day",[15],[27],{"name":28,"affiliation":29,"role":30},"Soyoung Q Park, Prof. Dr.","German Institute of Human Nutrition Potsdam-Rehbruecke","PRINCIPAL_INVESTIGATOR",[32,37],{"name":33,"role":34,"phone":35,"phoneExt":11,"email":36},"Trust Centre of the Human Study Centre Recruitment Officer","CONTACT","+4933200 882753","CoVa-Studie@dife.de",{"name":38,"role":34,"phone":39,"phoneExt":11,"email":40},"Mine Schmidt","+4933200 882518","mine.schmidt@dife.de",[42],{"facility":29,"status":43,"city":44,"state":11,"zip":11,"country":45,"countryCode":46,"cosmosGeoPoint":11,"geoPoint":11,"contacts":47},"RECRUITING","Nuthetal","Germany","DE",[48],{"name":49,"role":34,"phone":35,"phoneExt":11,"email":36},"Recruitment Officer",{"type":30,"investigatorFullName":51,"investigatorTitle":52,"investigatorAffiliation":5,"oldNameTitle":11,"oldOrganization":11},"Prof. Dr. Soyoung Q Park","Prof. Dr.","100585905",false,"NCT06908447","Cold Water and Decision-Making","Voluntary Cold-Water Immersion Effects on Value-Based Choice","CoVa","Inclusion Criteria:\n\n* 18-40 years of age\n* Consent to participate\n* Fluency in German\n* Physically and mentally healthy\n* BMI 18-30 kg\u002Fm2\n* Normal day-night rhythm\n\nExclusion Criteria:\n\n* Raynaud syndrome\n* Cold urticaria\n* High resting heart rate (\\>160 beats per minute)\n* Acute infection\n* Diagnosed current or former illnesses of\n\n  * Brain and mind\n  * Heart and blood circulation\n  * Gastrointestinal system\n  * Endocrine system\n  * Other serious past or present medical conditions\n* Wearing of medical devices (e.g., pacemaker)\n* Fear of blood, needles, or phlebotomy\n* Allergies to plasters, gels, and other medical equipment\n* Allergies to commercially available liquid meals (e.g., shakes, yfood Labs GmbH)\n* Recurrent intake of medication which affect metabolism\n* Regular nicotine consumption (e.g., vaping, cigarettes)\n* Excessive alcohol consumption (\\>14 servings\u002Fweek)\n* Recent illegal drug consumption (within 2 weeks prior)\n* Strong mental or physical stress\n* Excessive exercise (\\>2 h high-intensity exercise\u002Fday)\n* Pregnancy or breastfeeding\n* Inability to wear skin-exposing swimwear, e.g., for religious reasons\n* Affinity for winter swimming, cryotherapy, breathwork (\\>3 times\u002Fyear)",true,"ALL","18 Years","40 Years",{"count":65,"type":66},40,"ESTIMATED","INTERVENTIONAL",[69],"NA","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.",[72,73,74,75],"Behavior","Stress","Quality of Life","Psychological Wellbeing",[77,78,73,79,80],"Decision-Making","Psychology","Cold-Exposure","Cold-Water Immersion","2026-04-17",{"date":83,"type":84},"2026-04-21","ACTUAL",{"date":86,"type":84},"2025-08-28",{"date":88,"type":66},"2026-12-31",{"name":5,"class":6},1]