Stroke Clinical Trial
— POWER-FOfficial title:
Power Exercise for Stroke Recovery: The POWER Feasibility Trial
Post-stroke deficits are highly common and functional impairment persists throughout life after stroke. Skeletal muscle mass and strength are fundamental contributors to mobility throughout the adult life course. Stroke-related muscle atrophy contributes to loss of strength, and declines in lower extremity function, cardiorespiratory fitness, and walking independence and post-stroke sarcopenia. Improving the quantity and function of skeletal muscle needs to be an important therapeutic target after stroke. Resistance exercise training (RET) has been shown to increase skeletal muscle mass, strength and power, reduce oxidative stress, improve cardiac function, and better regulate lipids after stroke. However, the feasibility and the effects of a power focused RET program for individuals with stroke need to be examined.
Status | Recruiting |
Enrollment | 15 |
Est. completion date | June 1, 2024 |
Est. primary completion date | June 1, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - =18 years old - =6 months post-stroke - Able to walk >10 meters with or without the use of an assistive device - Living in the community - Mild to moderate stroke severity (modified Rankin Scale =3) Exclusion Criteria: - Any contraindications to exercise for people with cardiovascular disease, such as unstable angina, uncontrolled hypertension, orthostatic blood pressure with exercise, or uncontrolled arrhythmias - Significant cognitive impairment that would preclude safe exercise participation (Montreal Cognitive Assessment score <26) - Actively engaged in stroke rehabilitation services |
Country | Name | City | State |
---|---|---|---|
Canada | School of Rehabilitation Science | Hamilton | Ontario |
Lead Sponsor | Collaborator |
---|---|
McMaster University |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Feasibility: Participant recruitment | Recruitment rates (n/week) and the number of recruited subjects (n) will be reported. Criteria for success include recruitment of =1 participant per month and n=15 recruited in =13 months. | Through study completion, over 13 months | |
Primary | Feasibility: Sex and gender distribution | Recruitment of males and females, men, women and gender diverse participants will be recorded (n, %). Criteria for success is <60% (n<9) of any sex or gender identity. | Through study completion, over 13 months | |
Primary | Feasibility: Attendance and attrition | Percentage of sessions attended (%) and lost to follow-up (n) will be reported. Criteria for success includes =85% sessions attended and =10% (n<2) lost to follow-up. | Through study completion, over 13 months | |
Primary | Feasibility: Serious and non-serious adverse events | Number of adverse events (i.e., deaths, serious and non-serious adverse events, n) will be reported. Criteria for success is 0 deaths or serious adverse events and <5 non-serious adverse events. | Through study completion, over 13 months | |
Primary | Feasibility: Exercise tolerance | Adherence to the prescribed exercises (%) and abnormal blood pressure responses to exercise (n) will be recorded. Criteria for success includes =85 of participants performing =85% of sets at the prescribed intensity, and =25% of weeks experiencing =1 abnormal blood pressure response (SBP =210 or =190 for males and females, respectively). | Through study completion, over 13 months | |
Primary | Feasibility: Satisfaction | Satisfaction will be measured with a 5-point Likert scale (1 = not at all satisfied, 2 = not satisfied, 3 = neither satisfied or not satisfied, 4 = satisfied, and 5 = completely satisfied). Criteria for success is =85% of participants reporting being satisfied or completely satisfied with the program. | Immediately post-intervention (week 10) | |
Secondary | Timed up and go test | The TUG is a measure of functional mobility. A standard chair (~46cm in height) will be placed at the start of a flat walking course and a cone will be placed 3 meters from the chair. Participants will stand from the chair, walk 3 meters, turn back towards the chair, and sit back down, without assistance. The task will be timed and measured in seconds. | Baseline (week 0) and post-intervention (week 10) | |
Secondary | Short physical performance battery | The SPPB involves 3 tests, each measuring different constructs of physical function: (1) balance (tandem stand test), (2) walking ability (4-meter walk test), and (3) lower-limb strength and endurance (5-times sit to stand test). Two trained study staff members will concurrently assess each measure. Each test on the SPPB is scored separately on a scale ranging from 0 to 4, per instrument scoring guidelines. Raw and SPPB scores will be measured. | Baseline (week 0) and post-intervention (week 10) | |
Secondary | 30-second chair stand test | The 30sCST is a measure of lower extremity strength and endurance. A ~43cm chair with a straight back and no armrests will be placed against the wall. Participants will cross their arms and keep feet flat on the floor. With their back straight, stand up and sit down as many times as possible in 30 seconds. | Baseline (week 0) and post-intervention (week 10) | |
Secondary | Isokinetic power | Upper- and lower-extremity muscle power (Watts/kg) will be measured using an isokinetic dynamometer, bilaterally, at 3 different velocities (30º, 60º, 120º per second). | Baseline (week 0) and post-intervention (week 10) | |
Secondary | Isokinetic torque | Upper- and lower-extremity muscle torque (Nm) will be measured using an isokinetic dynamometer, bilaterally, at 3 different velocities (30º, 60º, 120º per second). | Baseline (week 0) and post-intervention (week 10) | |
Secondary | Isometric strength | Maximal isometric knee and elbow flexor and extensor strength (kg) and grip strength (kg) will also be measured, using a handheld dynamometer. | Baseline (week 0) and post-intervention (week 10) | |
Secondary | Global physical activity questionnaire | The global physical activity questionnaire (GPAQ) consists of 16 items, which are grouped to capture different domains of physical activities including work, transport and discretionary (i.e., leisure or recreational) activities. The GPAQ score may range from 0 to 80,640 MET-minutes per week, although the maximum value is likely not possible to be attained. Higher values indicate greater physical activity levels. | Baseline (week 0) and post-intervention (week 10) | |
Secondary | Stroke-Impact Scale (SIS-3.0) | Version 3 of the Stroke-Impact Scale (SIS-3.0) will be used to assess stroke-specific health-related quality of life. The SIS-3.0 consists of 59 items that measure 8 different domains of health: strength, hand function, (instrumental) activities of daily living, mobility, communication, emotion, cognition, and participation. Each domain is scored separately and range from 0 to 100. Higher values indicate greater health-related quality of life. | Baseline (week 0) and post-intervention (week 10) |
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