Physiological Characteristics of High Altitude Climbers (ALTIPERF)

August 22, 2016 updated by: University Hospital, Grenoble
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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Grenoble, France, 38042
        • Grenoble University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

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 Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Elite climbers
Elite climbers selected in a national group for their previous performances at high altitude
Other: Stress test
Other: Sea level sportsmen
Control group with similar anthropometric, age, gender and maximal normoxic oxygen consumption that the elite climber group
Other: Stress test

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Performance reduction in hypoxia versus normoxia
Time Frame: Day one on the evaluation day
Difference in maximal cycling power output between the normoxic and the hypoxic exercise test
Day one on the evaluation day

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Near infrared signals during exercise
Time Frame: Day one on the evaluation day
Differences in cerebral and muscle TOI during exercise between the normoxia and the hypoxic exercise
Day one on the evaluation day

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Grenoble

Collaborators

Institut National de la Santé Et de la Recherche Médicale, France

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2013

Primary Completion (Actual)

March 1, 2014

Study Completion (Actual)

May 1, 2014

Study Registration Dates

First Submitted

October 21, 2013

First Submitted That Met QC Criteria

August 22, 2016

First Posted (Estimate)

August 26, 2016

Study Record Updates

Last Update Posted (Estimate)

August 26, 2016

Last Update Submitted That Met QC Criteria

August 22, 2016

Last Verified

August 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2013-A00629-36
  • ALTIPERF (Other Identifier: Grenoble University Hospital)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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