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Physiological Characteristics of High Altitude Climbers

Not Applicable
Completed
Conditions
Exercise
Hypoxia
Sport Performance
Interventions
Other: Stress test
Registration Number
NCT02880150
Lead Sponsor
University Hospital, Grenoble
Brief Summary

Climbing at high altitude and tolerating hypoxic environment require specific physiological adaptations. Large intersubjects differences exist regarding the ability to adapt to high altitude and hypoxia. The present study aims to characterise the physiological responses to hypoxia in a group of elite climbers by comparison to sea level athletes. We hypothesised that elite climbers would show better physiological responses to hypoxia and more preserved performances compared to sea level.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
20
Inclusion Criteria
  • Age between 18 and 40
  • Member of the national high altitude climbing group
Exclusion Criteria
  • Any diseases incompatible with hypoxic exposure, exercise testing
  • Pregnancy

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Elite climbersStress testElite climbers selected in a national group for their previous performances at high altitude
Sea level sportsmenStress testControl group with similar anthropometric, age, gender and maximal normoxic oxygen consumption that the elite climber group
Primary Outcome Measures
NameTimeMethod
Performance reduction in hypoxia versus normoxiaDay one on the evaluation day

Difference in maximal cycling power output between the normoxic and the hypoxic exercise test

Secondary Outcome Measures
NameTimeMethod
Near infrared signals during exerciseDay one on the evaluation day

Differences in cerebral and muscle TOI during exercise between the normoxia and the hypoxic exercise

Trial Locations

Locations (1)

Grenoble University Hospital

🇫🇷

Grenoble, France

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