- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT01930513
Exercise Capacity and Daily Physical Activity in Obese Subjects With Treated Obstructive Sleep Apnea
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.
Visão geral do estudo
Status
Condições
Tipo de estudo
Inscrição (Real)
Contactos e Locais
Locais de estudo
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Ontario
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Toronto, Ontario, Canadá, M6M 2J5
- West Park Healthcare Centre
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Método de amostragem
População do estudo
Descrição
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
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Peak oxygen uptake (Peak VO2) measured at the end of the Incremental Shuttle Walk Test (ISWT)
Prazo: All outcome measures will be performed within four weeks of each other
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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
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Six minute walk test (6MWT)
Prazo: 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.
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Four weeks
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Incremental Treadmill Test (ITM)
Prazo: Four weeks
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A maximal treadmill test will be performed once with expired gas analysis.
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Four weeks
|
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Incremental cycle test (ICE)
Prazo: Four weeks
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A maximal symptom limited cardio-pulmonary exercise test on a cycle ergometer.
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Four weeks
|
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Endurance cycle ergometer
Prazo: Four weeks
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Two endurance cycle tests will performed at 60% and 80% of the maximal peak oxygen obtained on either the ICE or ITM
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Four weeks
|
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Endurance treadmill test
Prazo: Four weeks
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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
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Four weeks
|
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Daily physical activity
Prazo: Four weeks
|
A sensewear armband will be worn for 7 days and only taken off for showering/bathing.
|
Four weeks
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Roger S Goldstein, MBChB, West Park Healthcare Centre
Publicações e links úteis
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- RG2010OSA
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