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.
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 Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
34
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.
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.
University hospital
Brest, France
Forced Vital Capacity (FVC in L) at rest.
spirometry at rest
Time frame: 1 day
Forced Expiratory Volume
FEV1 (in L)
Time frame: 1 day
Peak Flow
PF (peak flow in L/s)
Time frame: 1 day
mean flow rates
mean expiratory flow rates in L/ s at 75%, 50% and 25% of FVC (MEF 75, MEF 50, MEF 25).
Time frame: 1 day
maximal ventilation
VE (ventilation in L/min)
Time frame: 1 day
carbon dioxide production
VCO2 ( in L/min)
Time frame: 1 day
oxygen consumption
VO2 ( in L/min)
Time frame: 1 day
tidal volume
VT (in L)
Time frame: 1 day
breathing frequency
RF (in breaths/min)
Time frame: 1 day
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