NCT05409560

Core Temperature Afterdrop in Cold-water Swimming

Analysis of Core Temperature Afterdrop and Factors Associated With Afterdrop in Cold-water Swimming

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 15 (actual)
• Sponsor: University Hospital, Caen · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

A significant risk associated with hypothermia during exercise in a cold environment is the core temperature (T°core) afterdrop, which corresponds to a continuous fall in T°core during rewarming after hypothermia. However, the rate and predictors of the afterdrop are unclear, particularly during prolonged cold water swimming. The investigators propose to measure the changes in T°core during and after a cold water swim at 12.5-13°C qualifying for English Channel swim and to test the impact of anthropometric and swimming parameters on the duration of the T°core afterdrop. The hypotheses are that afterdrop is common during a prolonged cold water swimming event and that protective factors against T°core drop during cold water swimming (increased body fat and BMI) might, conversely, be associated with prolonged afterdrop.

Conditions

• Hypothermia, Accidental
• Cold Water Swimming

Interventions

Type	Name	Description
OTHER	Swimming participants in the 6-hour cold water swim	The 6-hour cold water swim was the qualifying swim for the English Channel swim during the Channel Swim Camp Dinard 2021 and participants were the swimmers registered for the 6-hour cold water swim who volunteered to participate in this study

Timeline

• Start date: 2021-05-21
• Primary completion: 2021-05-23
• Completion: 2021-08-19
• First posted: 2022-06-08
• Last updated: 2025-03-26

Locations

1 site across 1 country: France