Wetsuit and Life Jacket Induced Effects on Spirometry and VO2 in Windsurfers

Not Applicable

Completed

• Conditions: Exercise; Ventilation
• Interventions: Diagnostic Test: resting standard spirometry; Diagnostic Test: maximum exercise testing

• Registration Number: NCT03440294
• Lead Sponsor: University Hospital, Brest

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.

Study Timeline

• Study First Submitted: 2018-01-31
• Study First Submitted QC: 2018-02-14
• Study Start: 2018-02-22
• Study First Posted: 2018-02-22
• Primary Completion: 2019-04-18
• Study Completion: 2019-04-18
• Status Verified: 2019-05
• Last Update Submitted: 2019-05-03
• Last Update Posted: 2019-05-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 34

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
without neoprene suit and life jacket	resting standard spirometry	Realization of the following examinations WITHOUT neoprene suit and life jacket : * resting standard spirometry * maximum exercise testing. No drug and no placebo will be used in this arm.
without neoprene suit and life jacket	maximum exercise testing	Realization of the following examinations WITHOUT neoprene suit and life jacket : * resting standard spirometry * maximum exercise testing. No drug and no placebo will be used in this arm.
with neoprene suit and life jacket	maximum exercise testing	Realization of the following examinations WITH neoprene suit and life jacket : * resting standard spirometry * maximum exercise testing. No drug and no placebo will be used in this arm.
with neoprene suit and life jacket	resting standard spirometry	Realization of the following examinations WITH neoprene suit and life jacket : * resting standard spirometry * maximum exercise testing. No drug and no placebo will be used in this arm.

Primary Outcome Measures

Name	Time	Method
Forced Vital Capacity (FVC in L) at rest.	1 day	spirometry at rest

Secondary Outcome Measures

Name	Time	Method
Peak Flow	1 day	PF (peak flow in L/s)
carbon dioxide production	1 day	VCO2 ( in L/min)
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).
Forced Expiratory Volume	1 day	FEV1 (in L)
maximal ventilation	1 day	VE (ventilation in L/min)
oxygen consumption	1 day	VO2 ( in L/min)
tidal volume	1 day	VT (in L)
breathing frequency	1 day	RF (in breaths/min)

Trial Locations

Locations (1)

University hospital; 🇫🇷 Brest, France