Understanding Changes in Heart Function After Exercise in People With Stroke
Beyond VO2peak: Understanding Exercise-induced Changes in Cardiovascular Function After Stroke
Little is known about how exercise can affect heart function in stroke survivors.
This study will look at changes in cardiovascular fitness and function after 6 months of exercise. Volunteers will be tested before and after the program and again 2 months later to measure the effects on stroke risk factors, fitness level and flexibility of the arteries. Blood tests will measure cholesterol levels and other signs of inflammation.
This study will help us better understand how exercise after stroke can improve heart function and heart health, and ultimately help in lowering future stroke risk.
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
Purpose
To determine the effects of aerobic exercise after stroke on cardiorespiratory fitness, cardiovascular function, stroke risk factors, walking and health-related quality of life. This study will also examine the retention of these effects after the exercise program ends.
Methods
A randomized controlled study design will be used. Sixty participants will be randomized to participate in one of 2 treatment arms (6 months duration, 3 days / week, 1 hour / session):
- BALANCE AND FLEXIBILITY (non-aerobic) PROGRAM will be comprised of individualized upper and lower body stretching, or balance activities, yoga- or Tai Chi-style classes.
- AEROBIC PROGRAM will be comprised of a structured, progressive aerobic training program.
Participants will be evaluated at 3 time points - baseline (0 months), post-intervention (6 months) and follow up (8 months) - for stroke risk factors, cardiorespiratory fitness, arterial stiffness, echocardiography measures, inflammatory biomarkers, ambulatory capacity and health-related quality of life.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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British Columbia
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Vancouver, British Columbia, Canadá
- Vancouver General Hospital
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Vancouver, British Columbia, Canadá
- GF Strong Rehabilitation Centre
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Age 50-80 years old
- Has experienced a stroke
- At least 12 months post-stroke
- Able to stand independently
- Able to walk at least 5 metres (assisted devices and guarded supervision is permitted)
Exclusion Criteria:
- Stroke of non-cardiogenic origin (aneurysm, tumour)
- Actively engaged in other stroke rehabilitation services
- Class C or D American Heart Association Risk Criteria (uncontrolled arrhythmias)
- Resting blood pressure > 160/100 mmHg
- Significant musculoskeletal problems (rheumatoid arthritis) or other neurological conditions (e.g. Parkinson's)
- Has a pacemaker
- Pain or other co-morbidities (e.g. unclipped aneurysms, uncontrolled seizures etc.) which would preclude participation
- Behavioural issues that would limit participation in exercise
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Solteiro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Experimental: Aerobic Program
The Aerobic Program will be the Experimental arm of this trial, where a structured, progressive aerobic exercise will be conducted in a class format
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The AEROBIC PROGRAM will be the Experimental arm of this trial.
It will be a structured, progressive aerobic training program that will be 6 months in duration.
Classes will be held 3 times / week, for 1 hour / session.
|
|
Comparador Ativo: Balance and Flexibility Program
The Balance and Flexibility Program will be a non-aerobic intervention that will act as an Active Comparator.
Stretching, balance exercises, yoga- or Tai Chi-style classes will be conducted.
|
The BALANCE AND FLEXIBILITY (non-aerobic) PROGRAM will be the Active Comparator arm of this trial.
It will be comprised of upper and lower body stretching, or balance activities, yoga- or Tai Chi-style classes.
This program will be 6 months in duration.
Classes will be held 3 times / week, for 1 hour / session.
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Prazo |
|---|---|
|
Stroke risk factors (blood pressure, heart rate, lipid profiles, glucose metabolism), cardiorespiratory fitness
Prazo: assessed at baseline (0 months), post-program (6 months) and follow up (8 months)
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assessed at baseline (0 months), post-program (6 months) and follow up (8 months)
|
Medidas de resultados secundários
Medida de resultado |
Prazo |
|---|---|
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Arterial stiffness and inflammatory biomarkers
Prazo: assessed at 0, 6 and 8 months
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assessed at 0, 6 and 8 months
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Echocardiography measures
Prazo: assessed at 0 and 6 months
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assessed at 0 and 6 months
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Ambulatory capacity and health related quality of life
Prazo: assessed at 0, 6 and 8 months
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assessed at 0, 6 and 8 months
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Janice Eng, PhD, The University of British Columbia - Vancouver Coastal Health Research Institute
- Diretor de estudo: Penelope Brasher, PhD, Vancover General Hospital
- Diretor de estudo: Andrei Krassioukov, MD, PhD, University of British Columbia
- Diretor de estudo: Kenneth Madden, MD, University of British Columbia
- Diretor de estudo: Ada Tang, University of British Columbia
- Diretor de estudo: Teresa Tsang, MD, University of British Columbia
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 (Real)
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
- H10-00735
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