Exercise, Ventilation
Conditions
Keywords
windsurfer, wetsuit, spirometry, cardiopulmonary exercise testing, lung function, pulmonary function, oxygen uptake
Brief summary
The purpose of this study is to investigate the effect of wearing both neoprene suit and life jacket on respiratory capacities at rest and cardiopulmonary capacities during exercise in windsurfers.
Detailed description
Windsurfers will perform resting spirometry and exercise test on cycle ergometer until exhaustion in two conditions: with or without equipment. The investigators will measure Forced Vital Capacity, FEV1 peak flow at rest and oxygen uptake, carbon dioxide consumption, ventilation at each step of the incremental exercise and at exhaustion.
Interventions
DIAGNOSTIC_TESTresting standard spirometry
The subject (seated, bust straightened) should perform, after a slow and maximum inspiration, a forced and complete exhalation followed by a new inspiration to the total lung capacity.
DIAGNOSTIC_TESTmaximum exercise testing
Incremental exercise on cycle ergometer with 100W start for men (80W for women) for 4 minutes as part of the warm-up. Then, step increment of a 50W power for men (40W for women) lasting 2 minutes each.
Sponsors
University Hospital, Brest
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Male or female aged 18 to 35 * Do not contraindicate any of the investigations in the study * Being affiliated to a social security system * free, informed and written consent * Have already performed a cardiopulmonary exercise test without any electrocardiographic abnormality * Subject practicing windsurfing (whatever the level of practice (leisure or competition))
Exclusion criteria
* Subjects \< 18 years old * Pregnant woman * Inability to consent * Taking any of the following: oral or inhaled Beta 2 short-acting or long-acting mimetics, oral or inhaled corticosteroids, oral anti-leukotrienes. * Abnormalities in the resting ECG pattern
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Forced Vital Capacity (FVC in L) at rest. | 1 day | spirometry at rest |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Peak Flow | 1 day | PF (peak flow in L/s) |
| mean flow rates | 1 day | mean expiratory flow rates in L/ s at 75%, 50% and 25% of FVC (MEF 75, MEF 50, MEF 25). |
| maximal ventilation | 1 day | VE (ventilation in L/min) |
| Forced Expiratory Volume | 1 day | FEV1 (in L) |
| oxygen consumption | 1 day | VO2 ( in L/min) |
| tidal volume | 1 day | VT (in L) |
| breathing frequency | 1 day | RF (in breaths/min) |
| carbon dioxide production | 1 day | VCO2 ( in L/min) |
Countries
France
Outcome results
None listed