About this trial
The purpose of this study is to determine the effect of 5 days post-exercise hot water immersion on exercise performance at simulated altitude.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Physically active (minimum of 90 minutes of moderate-intensity exercise per week)
Disqualifiers
Cardiovascular disease
resident of >1500 m above sea-level in the past year;
history of fainting
Trial design
Parallel
Treatments tested in this trial
Post-Exercise Hot Water Immersion
Other interventionParticipants will cycle for 60 minutes at 50% of maximal oxygen uptake (VO2 max) followed by 30 minutes post-exercise hot water immersion (40oC) for 5 consecutive days.
Control Group
Other interventionParticipants will cycle for 60 minutes at 50% maximal oxygen uptake (VO2 max) for 5 consecutive days. There is no water immersion following the exercise.
Treatment groups
Trial outcomes
Primary outcomes
Time-Trial Performance in hypoxia conditions
Results of a 16 km time-trial test conducted at an fraction of inspired oxygen (FiO2) of 0.14
Secondary outcomes
Pulse oxygen saturation during exercise
Capillary oxygen saturation measured on the earlobe throughout the time-trial tests using pulse oximetry.
Skin temperature during exercise
Skin temperature measured throughout the time trial-tests and exercise training intervention using temperature probes attached to the calf, thigh, chest and arm, from which weighted averages are calculated.
Core temperature during exercise
Core body temperature measured throughout the time-trial tests and exercise training interventions using a rectal temperature probe.
Heart Rate during exercise
Heart rate will be measured throughout the time trial tests and exercise training interventions using a wireless (Polar) heart rate chest strap.
Sponsors and contacts
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