Swimming Immediately After Having a Meal

Sadness Clinical Trial

Official title:

Swimming Immediately After Having a Meal: a Randomized Controlled Study

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05401396
• Other study ID #: 052022
• Status: Completed
• Phase: N/A
• Start date: May 28, 2022
• Est. completion date: June 4, 2022

Study information

• Verified date: October 2023
• Source: Herlev Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Many believe that it is unsafe to swim immediately after having a meal and that it is preferable to wait at least 30 minutes. The fear is that swimming can cause stomach cramps and muscle cramps with discomfort and potentially drowning.

With this randomized controlled trial, the aim was to investigate whether there was any hold in this belief and what could potentially happen by swimming with the stomach full immediately after a meal.

Description:

All volunteers will be adults. Participants will receive both oral and written information about the trial prior to giving consent for participation.

Participants will act as their own control over two days. On the first day, participants will be randomized to either swim immediately after they have eaten their usual lunch or 30 minutes after the last bite. They will do the opposite on the second day. The randomization will be done by throwing a dice.

Prior to swimming, participants will fill out the following:

• Visual analogue scale (VAS) about their well-being

• Questionnaire about their mood state

After swimming, participants will fill out the following:

• Visual analogue scale (VAS) about their well-being

• Questionnaire about their mood state

• Adverse events

Prior to swimming and afterwards, the participants' blood pressure, pulse, and blood oxygen levels will be measured.

Sample size: Convenience sample.

Withdrawal and dropout criteria: All participants will be informed that they can withdraw their consent at any point during the trial without having to explain any reasons.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 27
• Est. completion date: June 4, 2022
• Est. primary completion date: June 4, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• =18 years

• Healthy volunteers

• Otherwise, no restriction since each participant acts as their own control

Exclusion Criteria:

• Smoking one hour prior to swimming

• Participants who cannot swim

Related Conditions & MeSH terms

• Sadness

Intervention

Other:
• Swimming immediately after eating
After having the last bite of lunch, the participants will swim in the pool with a specific distance.

Locations

Country	Name	City	State
Denmark	Center for Perioperative Optimisation, Department of Surgery, Herlev og Gentofte Hospital, University of Copenhagen	Herlev

Sponsors (1)

Lead Sponsor	Collaborator
Herlev Hospital

Country where clinical trial is conducted

Denmark, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Occurrence of mortality	Any adverse events leading to death	During swimming
Secondary	Swimming time	Measured by seconds	During swimming
Secondary	Discomfort	Self-reported assessment of discomfort on a visual analogue scale. Minimum: 0. To Maximum: 100mm. Ranging from no discomfort to the worse imaginable discomfort.	During the actual swimming and immediately after swimming is completed
Secondary	Mood changes	Measured by the Profile of mood states. A five-point scale indicating the level of affection. Minimum: 1. To Maximum: 5.	Baseline and immediately after swimming
Secondary	Number of patients with any adverse events	Any adverse events other than already mentioned outcomes	During and immediately after swimming is completed