NCT05497713

Brief Summary

The primary objective of this trial is to determine whether mindsets sustain the feasibility of taking cold showers over a 3-month period. Secondary objectives are to determine potential effects on physical and mental well-being, sleep quality, skin and hair appearance, perceived illness, and related sickness absences from work.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
476

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Dec 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 3, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

August 11, 2022

Completed
4 months until next milestone

Study Start

First participant enrolled

December 2, 2022

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 17, 2024

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

April 6, 2025

Status Verified

March 1, 2024

Enrollment Period

1.2 years

First QC Date

August 3, 2022

Last Update Submit

April 2, 2025

Conditions

Psychological

Outcome Measures

Primary Outcomes (39)

  • Showering behaviour concerning frequency (Baseline)

    Participants will be asked how often they showered during the last week.

    Baseline

  • Showering behaviour concerning duration (Baseline)

    Participants will be asked how long they showered for during the last week.

    Baseline

  • Showering behaviour concerning motivation (Baseline)

    Participants will be asked their motivation for taking cold showers during the last week.

    Baseline

  • Showering behaviour concerning frequency (Week 1)

    Participants will be asked how often they showered during the last week.

    Week 1

  • Showering behaviour concerning frequency (Week 2)

    Participants will be asked how often they showered during the last week.

    Week 2

  • Showering behaviour concerning frequency (Week 3)

    Participants will be asked how often they showered during the last week.

    Week 3

  • Showering behaviour concerning frequency (Week 4)

    Participants will be asked how often they showered during the last week.

    Week 4

  • Showering behaviour concerning frequency (Week 5)

    Participants will be asked how often they showered during the last week.

    Week 5

  • Showering behaviour concerning frequency (Week 6)

    Participants will be asked how often they showered during the last week.

    Week 6

  • Showering behaviour concerning frequency (Week 7)

    Participants will be asked how often they showered during the last week.

    Week 7

  • Showering behaviour concerning frequency (Week 8)

    Participants will be asked how often they showered during the last week.

    Week 8

  • Showering behaviour concerning frequency (Week 9)

    Participants will be asked how often they showered during the last week.

    Week 9

  • Showering behaviour concerning frequency (Week 10)

    Participants will be asked how often they showered during the last week.

    Week 10

  • Showering behaviour concerning frequency (Week 11)

    Participants will be asked how often they showered during the last week.

    Week 11

  • Showering behaviour concerning frequency (Week 12)

    Participants will be asked how often they showered during the last week.

    Week 12

  • Showering behaviour concerning duration (Week 1)

    Participants will be asked how long they showered for during the last week.

    Week 1

  • Showering behaviour concerning duration (Week 2)

    Participants will be asked how long they showered for during the last week.

    Week 2

  • Showering behaviour concerning duration (Week 3)

    Participants will be asked how long they showered for during the last week.

    Week 3

  • Showering behaviour concerning duration (Week 4)

    Participants will be asked how long they showered for during the last week.

    Week 4

  • Showering behaviour concerning duration (Week 5)

    Participants will be asked how long they showered for during the last week.

    Week 5

  • Showering behaviour concerning duration (Week 6)

    Participants will be asked how long they showered for during the last week.

    Week 6

  • Showering behaviour concerning duration (Week 7)

    Participants will be asked how long they showered for during the last week.

    Week 7

  • Showering behaviour concerning duration (Week 8)

    Participants will be asked how long they showered for during the last week.

    Week 8

  • Showering behaviour concerning duration (Week 9)

    Participants will be asked how long they showered for during the last week.

    Week 9

  • Showering behaviour concerning duration (Week 10)

    Participants will be asked how long they showered for during the last week.

    Week 10

  • Showering behaviour concerning duration (Week 11)

    Participants will be asked how long they showered for during the last week.

    Week 11

  • Showering behaviour concerning duration (Week 12)

    Participants will be asked how long they showered for during the last week.

    Week 12

  • Showering behaviour concerning motivation (Week 1)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 1

  • Showering behaviour concerning motivation (Week 2)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 2

  • Showering behaviour concerning motivation (Week 3)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 3

  • Showering behaviour concerning motivation (Week 4)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 4

  • Showering behaviour concerning motivation (Week 5)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 5

  • Showering behaviour concerning motivation (Week 6)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 6

  • Showering behaviour concerning motivation (Week 7)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 7

  • Showering behaviour concerning motivation (Week 8)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 8

  • Showering behaviour concerning motivation (Week 9)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 9

  • Showering behaviour concerning motivation (Week 10)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 10

  • Showering behaviour concerning motivation (Week 11)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 11

  • Showering behaviour concerning motivation (Week 12)

    Participants will be asked their motivation for taking cold showers during the last week.

    Week 12

Secondary Outcomes (6)

  • WHO Five Well-Being Index

    All secondary outcomes will be assessed at baseline and then monthly for 3 months.

  • Questionnaire for positive aspects of well-being in adults

    All secondary outcomes will be assessed at baseline and then monthly for 3 months.

  • International Physical Activity Questionnaire

    All secondary outcomes will be assessed at baseline and then monthly for 3 months.

  • Pittsburgh Sleep Quality Index

    All secondary outcomes will be assessed at baseline and then monthly for 3 months.

  • Skin quality questionnaire

    All secondary outcomes will be assessed at baseline and then monthly for 3 months.

  • +1 more secondary outcomes

Study Arms (5)

Control Condition

NO INTERVENTION

No Mindset.

Egoistic x Proximal

EXPERIMENTAL

Mindset: "This is my 5-minute exercise."

Other: Mindsets

Egoistic x Distal

EXPERIMENTAL

Mindset: "I am doing this for my health."

Other: Mindsets

Altruistic x Proximal

EXPERIMENTAL

Mindset: "I am saving one kilo of CO2: "

Other: Mindsets

Altruistic x Distal

EXPERIMENTAL

Mindset: "I am doing this to fight climate change."

Other: Mindsets

Interventions

MindsetsOTHER

The primary objective of this trial is to determine whether mindsets sustain the feasibility of taking cold showers over a 3-month period.

Altruistic x DistalAltruistic x ProximalEgoistic x DistalEgoistic x Proximal

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The investigators will include
  • healthy participants between 18 and 65 years of age,
  • which do not take cold shower on a regular basis.
  • As there are no known gender differences, participants of both female and male sex are included.

You may not qualify if:

  • The investigators will exclude
  • pregnant or lactating women by self-report and
  • subjects with cardiac, pulmonary or any other severe disease by self-report.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Basel Faculty of Psychology Division for Clinical Psychology and Psychotherapy

Basel, Canton of Basel-City, 4055, Switzerland

Location

Study Officials

  • Jens Gaab, Prof. Dr.

    University of Basel, Division Clinical Psychology and Psychotherapy

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Sponsor-Investigator

Study Record Dates

First Submitted

August 3, 2022

First Posted

August 11, 2022

Study Start

December 2, 2022

Primary Completion

February 17, 2024

Study Completion

December 31, 2024

Last Updated

April 6, 2025

Record last verified: 2024-03

Data Sharing

IPD Sharing
Will not share

Locations

CH(1)