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CompletedNCT04136925ERUPTION1Updated Feb 7, 2020

Evaluation of the Preparation of Runners and the Impact of an Ultra-trail Event in a Hot and Humid Environment

An observational study in Intensive Sport, sponsored by Centre Hospitalier Universitaire de la Réunion. Completed at 1 site in France. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-02-07.

Sponsored by Centre Hospitalier Universitaire de la Réunion · Observational

Study type
Observational
Model
Other
Time perspective
Cross-sectional
Enrollment
1,000
Ages
18 Years and older
Sex
All
01

Study summary

Human beings are characterized by their extraordinary ability to thermoregulate. During a physical exercise, only 25% of the energy provided by the substrates is converted into muscular mechanical work. The remaining 75% is released as heat.

In fact, thermoregulation has always been an integral part of exercise's physiology.

Due to current climate change, study and understand the mechanisms of thermoregulation and the practices of runners to cope with these constraints becomes increasingly necessary in order to optimize the sports performance and protect the health of athletes of all levels.

Heat stroke is responsible for more deaths than any other environmental disaster and is the second leading cause of sport mortality after heart problems.

The exercise-related hyperthermia and malignant hyperthermia, dehydration and hyponatremia problems have been relatively well studied in several sports. For ultra endurance disciplines, the data remains very fragmentary.

02

Conditions studied

  • Intensive Sport
03

In context

Lead sponsor

Centre Hospitalier Universitaire de la Réunion is the lead sponsor of 137 studies on the registry; 35 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Runners participating in one of the 3 individual races of the "Grand Raid" 2019 in Reunion Island

Inclusion criteria

  • All major runners participating in one of the 3 individual races of the "Grand Raid" 2019 in Reunion Island

Exclusion criteria

Exclusion Criteria:

  • Refusal to participate
  • Runners who do not understand French
05

Study design

Observational model
Other
Time perspective
Cross-sectional
Enrollment
1,000 participants (actual)
Patient registry
No

Groups and cohorts

  • runner participating of the "Grand Raid"

    Other: questionnaire

Interventions

  • Otherquestionnaire

    questionnaire before and after race

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What researchers measure

Primary outcomes

  1. Repercussion of the race on health evaluate by proportion of heat symptoms on our sample

    Time frame: during the 3 days of the race

07

Study locations

1 site
  • Centre Hospitalier Universitaire de la Réunion
    Saint-Pierre, 97448, France
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 7, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04136925
Lead sponsor
Centre Hospitalier Universitaire de la Réunion
Responsible party
Sponsor
First posted
Oct 23, 2019
Start date
Oct 11, 2019
Primary completion
Nov 1, 2019
Completion
Nov 1, 2019
Last update
Feb 7, 2020

Study contacts

Nicolas BOUSCAREN
principal investigator · Centre Hospitalier Universitaire de La REUNION

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2019. You cannot join it, but the record below documents what was studied.

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