Airway Dysfunction and Remodelling in Athletes Following Swimming Training in Chlorinated Pools
- Conditions
- AsthmaAirway Hyperresponsiveness
- Registration Number
- NCT00686452
- Lead Sponsor
- Laval University
- Brief Summary
Swimmers show the highest prevalence of asthma among elite athletes, certainly due to chlorine exposure. The consequences of a chronic exposure to chlorine compounds by swimmers and the mechanisms of asthme in this population are still poorly documented. Specific diagnostic criteria have been proposed by the International Olympic Committee - Medical Council (IOC-MC) and World anti-doping agency (WADA) to determine the presence of asthma in athletes. Using the more specific bronchial provocation tests, our aims are
1. to compare the prevalence of asthma in swimmers and control subjects
2. to analyze the Influence of chlorine exposure on bronchial inflammatory processes in swimmers versus control subjects
3. to study the time-course of changes in airway symptoms, responsiveness, inflammation and remodeling after cessation of training
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 100
- 14 to 35 years old
- To swim at least 10h per week
- For control subjects, non-competitive healthy subjects
- any disease that may interfere with the tests for the controls
- Triathletes are excluded
- Smokers
- Obese or with a BMI more than 29
- Former athletes (control group)
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Asthma and airway hyperreactivity prevalence in swimmers 3 measurements in the year
- Secondary Outcome Measures
Name Time Method Airway inflammation and remodeling in swimmers 3 measurements in the year and a bronchial biopsy
Trial Locations
- Locations (1)
Centre de recherche en pneumologie et en cardiologie de l'hôpital Laval
🇨🇦Québec, Quebec, Canada