NCT01386814

Brief Summary

Aim: To evaluate the influence of oxygen deficit on the cognitive performance and also about the architecture and sleep efficiency in volunteers subjected to mild and moderate exercise in a hypobaric chamber. SUMMARY: Participants in this study 30 healthy male volunteers, aged 20 to 40 years, regular physical activity, constituting three groups: 1 - without exercise-hypoxia group 10 volunteers who not be subjected to any kind of physical exercise in hypoxia and remain all day of experiment, 2 - group exercise at sea level, is composed of 10 volunteers who will undergo a protocol exercise physical sea-level, 3 - group exercise and hypoxia - 10 volunteers who will carry out a protocol exercise on a treadmill, being the same in condition of hypoxia (hypobaric chamber). All groups on the first day of the experiment will undergo baseline assessments, laboratory blood analysis salivary and spirometric testing. Assessments will be personality and neuropsychological. After baseline assessments, the last day of the experiment, the groups will be evaluated again 4350m above sea level the sea, by personality tests, neuropsychological and laboratory. RATIONALE AND BACKGROUND: During exposure to environments with a partial reduction of oxygen, human body can undergo several physiological and psychological changes are not prepared for such condition. Few studies have reported that the elevation changes and cognitive aspects related to sleep. MATERIAL AND METHOD: They describe the procedures to be performed, and the study conducted in local with adequate infrastructure.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jul 2011

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 30, 2011

Completed
1 day until next milestone

First Posted

Study publicly available on registry

July 1, 2011

Completed
Same day until next milestone

Study Start

First participant enrolled

July 1, 2011

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2012

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2012

Completed
Last Updated

July 1, 2011

Status Verified

May 1, 2009

Enrollment Period

11 months

First QC Date

June 30, 2011

Last Update Submit

June 30, 2011

Conditions

Eligibility Criteria

Age20 Years - 40 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

Participants in this study 30 healthy male volunteers, aged 20 to 40 years, regular physical activity, constituting three groups: 1 - without exercise-hypoxia group 10 volunteers who not be subjected to any kind of physical exercise in hypoxia and remain all day of experiment, 2 - group exercise at sea level, is composed of 10 volunteers who will undergo a protocol exercicio physical sea-level, 3 - group exercise and hypoxia - 10 volunteers who will carry out a protocol exercise on a treadmill, being the same in condition of hypoxia. All groups on the first day of the experiment will undergo baseline assessments, laboratory blood analysis salivary and spirometric testing.

You may qualify if:

  • Minimum age 12 years school;
  • Intelligence quotient ≥ 80.

You may not qualify if:

  • Present changes in resting electrocardiogram and effort and in clinical evaluation conducted by the Medical Center for Psychobiology and Exercise;
  • Being a smoker and / or using drugs of abuse;
  • Make use of psychotropic medications;
  • Make use of alcoholic beverages frequently;
  • Display sleep disorders

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Hypoxia

Condition Hierarchy (Ancestors)

Signs and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Marco T Mello, Dr

    Federal University of São Paulo

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Valdir A Lemos, DR

CONTACT

Study Design

Study Type
observational
Sponsor Type
OTHER

Study Record Dates

First Submitted

June 30, 2011

First Posted

July 1, 2011

Study Start

July 1, 2011

Primary Completion

June 1, 2012

Study Completion

December 1, 2012

Last Updated

July 1, 2011

Record last verified: 2009-05