Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
ENROLLING_BY_INVITATION
NA
75 participants
INTERVENTIONAL
2024-10-10
2025-10-01
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
* Does a 4 week CWI intervention improve measures of immune function, sleep quality, mental health and well-being, and muscular strength?
* Are there any differences in these measures when comparing cold tubs versus cold showers?
Researchers will compare chronic use of cold tubs to cold showers to see if cold water immersion may improve overall immune health and well-being.
Participants will:
* Undergo 4 weeks of Cold Tub or Cold Shower interventions at a frequency of 3 times a week for 4 minutes, if placed in the CWI intervention groups
* Undergo testing measures at the two pre- and post- intervention time points, if placed in the healthy control group or the CWI intervention groups
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Keywords
Explore important study keywords that can help with search, categorization, and topic discovery.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
OTHER
NONE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Cold Tub Immersion Group (CI)
Participants will utilize the research cold tub (10 ºC, 4-minutes, 3 times a week), following a standardized protocol (see intervention description).
Cold Water Immersion (CWI) - Cold Tub Immersion (CI)
Once thermoneutral procedures are complete, participants in the CI group will be seated in the cold tub and submerged into the water (10º C). The sternal notch of each participant will be used as the anatomical marker to mark submersion point. Participants will sit with both arms outstretched underwater with their backs not touching the sides of the tub. Participants with a shorter stature will be provided an underwater cushion to meet the submersion requirements. The 4-minute timer will begin once confirmation of the participants submersion level and posture is determined. Once completed, the participant will be instructed to slowly exit the tub and allowed to dry and change as necessary.
Cold Shower Group (CS)
Participants will utilize the research shower area (10 ºC, 4-minutes, 3 times a week), following a standardized protocol (see intervention description).
Cold Water Immersion (CWI) - Cold Shower (CS)
Once thermoneutral procedures are complete, participants in the CS group will be instructed to enter the research shower area. Within the shower area, the walls of the shower will be numbered from 1 to 4, with 1 defined as facing the faucet, 2 defined as 90° to the right of side 1, 3 defined as 180° from the faucet, and 4 defined as 270° to the right or 90° C to the left from side 1. Participants will be instructed to turn 90° to the right cycling through sides 1 to 4 and then back to 1 every 15 seconds prompted by the researcher. This will allow the participant to complete four full rotations in the shower during the 4-minute intervention time. The shower faucet is modified and oriented in a way where it only produces cold water (10º C) when turned on. Once completed, the participant will be instructed to slowly exit the shower and is allowed to dry and change as necessary
Control Group (CO)
Participants will not undergo any cold tub or cold shower intervention.
Control Group (CO)
Participants will be encouraged to maintain their current diet and exercise across the duration of the 4 week intervention. Participants will still be subjected to the pre- and post-intervention data collection session.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Cold Water Immersion (CWI) - Cold Tub Immersion (CI)
Once thermoneutral procedures are complete, participants in the CI group will be seated in the cold tub and submerged into the water (10º C). The sternal notch of each participant will be used as the anatomical marker to mark submersion point. Participants will sit with both arms outstretched underwater with their backs not touching the sides of the tub. Participants with a shorter stature will be provided an underwater cushion to meet the submersion requirements. The 4-minute timer will begin once confirmation of the participants submersion level and posture is determined. Once completed, the participant will be instructed to slowly exit the tub and allowed to dry and change as necessary.
Cold Water Immersion (CWI) - Cold Shower (CS)
Once thermoneutral procedures are complete, participants in the CS group will be instructed to enter the research shower area. Within the shower area, the walls of the shower will be numbered from 1 to 4, with 1 defined as facing the faucet, 2 defined as 90° to the right of side 1, 3 defined as 180° from the faucet, and 4 defined as 270° to the right or 90° C to the left from side 1. Participants will be instructed to turn 90° to the right cycling through sides 1 to 4 and then back to 1 every 15 seconds prompted by the researcher. This will allow the participant to complete four full rotations in the shower during the 4-minute intervention time. The shower faucet is modified and oriented in a way where it only produces cold water (10º C) when turned on. Once completed, the participant will be instructed to slowly exit the shower and is allowed to dry and change as necessary
Control Group (CO)
Participants will be encouraged to maintain their current diet and exercise across the duration of the 4 week intervention. Participants will still be subjected to the pre- and post-intervention data collection session.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* Aged 18-45
Exclusion Criteria
* Pregnant or planning to become pregnant
* Chronic use of anti-inflammatory medication
* Prior history of chronic disease conditions:
* Cardiovascular Disease
* Diabetes
* Cancer
* Raynaud\'s Disease
* Severe and untreated anxiety or depression
18 Years
45 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
University of Northern Colorado
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Laura Stewart
Professor
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
University of Northern Colorado - Gunter Hall
Greeley, Colorado, United States
Countries
Review the countries where the study has at least one active or historical site.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
2404058883
Identifier Type: -
Identifier Source: org_study_id