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.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
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 estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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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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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
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
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Único
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
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
|
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 activo: 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.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
|---|---|
|
Stroke risk factors (blood pressure, heart rate, lipid profiles, glucose metabolism), cardiorespiratory fitness
Periodo de tiempo: 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 resultado secundarias
Medida de resultado |
Periodo de tiempo |
|---|---|
|
Arterial stiffness and inflammatory biomarkers
Periodo de tiempo: assessed at 0, 6 and 8 months
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assessed at 0, 6 and 8 months
|
|
Echocardiography measures
Periodo de tiempo: assessed at 0 and 6 months
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assessed at 0 and 6 months
|
|
Ambulatory capacity and health related quality of life
Periodo de tiempo: assessed at 0, 6 and 8 months
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assessed at 0, 6 and 8 months
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Janice Eng, PhD, The University of British Columbia - Vancouver Coastal Health Research Institute
- Director de estudio: Penelope Brasher, PhD, Vancover General Hospital
- Director de estudio: Andrei Krassioukov, MD, PhD, University of British Columbia
- Director de estudio: Kenneth Madden, MD, University of British Columbia
- Director de estudio: Ada Tang, University of British Columbia
- Director de estudio: Teresa Tsang, MD, University of British Columbia
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- H10-00735
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