NCT05401396

Brief 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.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
27

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2022

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

May 25, 2022

Completed
3 days until next milestone

Study Start

First participant enrolled

May 28, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

June 2, 2022

Completed
2 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 4, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 4, 2022

Completed
Last Updated

October 26, 2023

Status Verified

October 1, 2023

Enrollment Period

7 days

First QC Date

May 25, 2022

Last Update Submit

October 25, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Occurrence of mortality

    Any adverse events leading to death

    During swimming

Secondary Outcomes (4)

  • Swimming time

    During swimming

  • Discomfort

    During the actual swimming and immediately after swimming is completed

  • Mood changes

    Baseline and immediately after swimming

  • Number of patients with any adverse events

    During and immediately after swimming is completed

Study Arms (2)

Swimming immediately after eating

EXPERIMENTAL

Two arms but all participants are performing both the intervention and the comparison.

Other: Swimming immediately after eating

Swimming 30 minutes after eating

NO INTERVENTION

Two arms but all participants are performing both the intervention and the comparison.

Interventions

After having the last bite of lunch, the participants will swim in the pool with a specific distance.

Swimming immediately after eating

Eligibility Criteria

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

You may qualify if:

  • ≥18 years
  • Healthy volunteers
  • Otherwise, no restriction since each participant acts as their own control

You may not qualify if:

  • Smoking one hour prior to swimming
  • Participants who cannot swim

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Perioperative Optimisation, Department of Surgery, Herlev og Gentofte Hospital, University of Copenhagen

Herlev, 2730, Denmark

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
CROSSOVER
Model Details: Each participant will on the first day of the trial be randomized either to swim in a pool immediately after lunch or to wait 30 minutes before swimming. The participants will do the opposite on the second day of the trial. The randomization will be done by throwing a dice.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

May 25, 2022

First Posted

June 2, 2022

Study Start

May 28, 2022

Primary Completion

June 4, 2022

Study Completion

June 4, 2022

Last Updated

October 26, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will not share

Locations