Exercise Capacity and Daily Physical Activity in Obese Subjects With Treated Obstructive Sleep Apnea
4. januar 2016 opdateret af: Roger Goldstein, West Park Healthcare Centre
Obesity is very common worldwide and breathing problems at night (obstructive sleep apnea, OSA) are common in obesity. Despite the best treatment, obesity and OSA are linked to early death from heart problems. They are also associated with lower levels of physical activity. Exercise strategies for weight loss, increasing physical activity and improving fitness are needed for obesity. In Obese individuals with OSA
- The investigators will compare corridor walking tests compared to laboratory exercise tests. The null hypothesis is that the peak oxygen uptake achieved and the cardiopulmonary response during both the six-minute walk test and Incremental Shuttle Walk Test would not be different from that observed during an Incremental Treadmill Test.
- The investigators will investigate whether cycling or walking uses more calories for the same intensity. We hypothesise that cycling (weight supported) will be endured for long.
- The investigators will compare commonly used exercise tests with levels of daily physical activity.
The information from these three projects will help us set up the optimal exercise program for obese individuals.
Studieoversigt
Status
Afsluttet
Betingelser
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
16
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
Ontario
-
Toronto, Ontario, Canada, M6M 2J5
- West Park Healthcare Centre
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år og ældre (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Sandsynlighedsprøve
Studiebefolkning
Obstructive Sleep Apnea
Beskrivelse
Inclusion Criteria:
- Obstructive Sleep Apnea
- Obesity BMI>30
- Controlled on Continuous Positive Airway Pressure for three months
Exclusion Criteria:
- cardiac co-morbidity e.g ischaemic heart disease, chronic heart failure, valvular heart disease
- pulmonary co-morbidity
- neurological condition limiting the ability to perform walking or cycling
- orthopaedic condition limiting the ability to perform walking or cycling
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Peak oxygen uptake (Peak VO2) measured at the end of the Incremental Shuttle Walk Test (ISWT)
Tidsramme: All outcome measures will be performed within four weeks of each other
|
Two Incremental Shuttle Walk tests will be performed within two hours on the same day with expired gas analysis measured by a portable gas analyser.
An ISWT is conducted over a 10m course and the speed is externally paced and increases each minute.
The participant is asked to continue until they are either too breathless or too tired to continue.
|
All outcome measures will be performed within four weeks of each other
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Six minute walk test (6MWT)
Tidsramme: Four weeks
|
The 6MWT will be performed over a 30 m level, straight course within an enclosed corridor.
The test protocol described by the American Thoracic Society will be modified to include standardized encouragement every 15 seconds to recommence walking if the participant chooses to rest during the test.
Participants will be familiarized with the test prior to participating in the study and, therefore, only one test will be performed.
|
Four weeks
|
|
Incremental Treadmill Test (ITM)
Tidsramme: Four weeks
|
A maximal treadmill test will be performed once with expired gas analysis.
|
Four weeks
|
|
Incremental cycle test (ICE)
Tidsramme: Four weeks
|
A maximal symptom limited cardio-pulmonary exercise test on a cycle ergometer.
|
Four weeks
|
|
Endurance cycle ergometer
Tidsramme: Four weeks
|
Two endurance cycle tests will performed at 60% and 80% of the maximal peak oxygen obtained on either the ICE or ITM
|
Four weeks
|
|
Endurance treadmill test
Tidsramme: Four weeks
|
Constant speed endurance treadmill test will be performed at 60% and 80% of the peak oxygen uptake achieved on either the ITM or ICE to symptom limitation
|
Four weeks
|
|
Daily physical activity
Tidsramme: Four weeks
|
A sensewear armband will be worn for 7 days and only taken off for showering/bathing.
|
Four weeks
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Roger S Goldstein, MBChB, West Park Healthcare Centre
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. november 2010
Primær færdiggørelse (Faktiske)
1. januar 2012
Studieafslutning (Faktiske)
1. januar 2016
Datoer for studieregistrering
Først indsendt
15. juli 2013
Først indsendt, der opfyldte QC-kriterier
23. august 2013
Først opslået (Skøn)
29. august 2013
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
5. januar 2016
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
4. januar 2016
Sidst verificeret
1. januar 2016
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- RG2010OSA
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .