- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03334331
Validation and Reproducibility of the Six-minute Step Test in Individuals With Obstructive Sleep Apnea Treated With CPAP
February 11, 2019 updated by: Matheus Gustavo Silva Magalhães, Universidade Federal de Pernambuco
Validation and Reproducibility of the Six-minute Step Test in Individuals With Obstructive Sleep Apnea Treated With Continuous Positive Airway Pressure (CPAP)
Introduction: The Obstructive Sleep Apnea (OSA) is characterized by obstructed superior airway during sleeping period promoting intermittent hypoxia-reoxygenation events.
These events cause consequences such as cardiorespiratory and peripheric muscle structure alterations, which can cause reduction of the exercise tolerance.
In this sense the continuous positive airway pressure (CPAP) is important to decrease the repercussions of the illness and cooperate to maintain the exercise functional capacity.
To measure this capacity, one good option is the six-minute step test (6MST), that is low cost and submaximal, in addition to being adaptable and portable.
However, there are doubts if it´s really capable to determinate the functional capacity of exercise of individuals with OSA treated with CPAP.
Objective: Evaluate the validity and reproducibility of 6MST to determine the functional capacity of exercise in individual with OSA treated with CPAP and develop a model of a reference equation for the performance of the test in this population.
Material and methods: This is an observational, prospective and cross-sectional study, in which will be evaluated 132 volunteers (66 men and 66 women), with age between 18 and 65 years, diagnosed with OSA of moderate and severe degree, treated with CPAP for a minimum of three months, recruited of the ambulatory of pneumology of Otávio de Freitas Hospital.
Initially will be collected personal and anthropometric information, answered to sleep questioners, quality of sleep and physical exercise, also respiratory muscle strength and lung function.
The realization of the tests to evaluate the functional capacity of exercise will be done in two days with a maximum of seven days between the tests.
In each day, the volunteers will do two 6MST and two six-minute walk test (6MWT), which order will be determined by randomization.
Expected Results: It is expected that the 6MST to be showed as reproducible and capable to quantify the functional capability of exercise in individuals with OSA treated with CPAP.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Observational
Enrollment (Actual)
48
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
-
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Pernambuco
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Recife, Pernambuco, Brazil, 50920-460
- Hospital Otávio de Freitas
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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 65 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Probability Sample
Study Population
Individuals adults with obstructive sleep apnea treated with CPAP
Description
Inclusion Criteria:
- Individuals with age between 18 and 65 years;
- Obstructive Sleep Apnea on moderate and severe degree (diagnosed by polysomnography);
- BMI bigger then 18 and less than 35 kg/m2;
- Treatment with CPAP at least three months, with use of the equipment for a time interval superior of 4h/night during five days per week.
Exclusion Criteria:
- Individuals with comorbidities such as uncontrolled hypertension and diabetes, orthopedic and neurologic alterations, respiratory disorders such as COPD and asthma, or any cardiovascular and respiratory which won't permit the realization of the tests.
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
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of steps
Time Frame: Two days
|
Number of steps climbed on the six-minute step test
|
Two days
|
Walked distance
Time Frame: Two days
|
Distance walked on six-minute walk test
|
Two days
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
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 (Actual)
December 4, 2017
Primary Completion (Actual)
May 21, 2018
Study Completion (Actual)
December 7, 2018
Study Registration Dates
First Submitted
October 30, 2017
First Submitted That Met QC Criteria
November 2, 2017
First Posted (Actual)
November 7, 2017
Study Record Updates
Last Update Posted (Actual)
February 15, 2019
Last Update Submitted That Met QC Criteria
February 11, 2019
Last Verified
February 1, 2019
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 66301817.3.0000.5208
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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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