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StrokeNCT03614585

Exercise Intensity Matters in Stroke Rehabilitation

A study testing 12 weeks of High-intensity Interval Training and 12 weeks of Moderate-Intensity Continuous Training in people with Stroke, run by McGill University at 2 sites in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The main objective of this multi-site project is to compare the effects of 12 weeks of HIIT vs. MICT on brain plasticity. The effects of HIIT vs. MICT on cardiovascular health, psychosocial predictors of physical activity and motor function will also be compared. Read more about this study

Who is it for?
Ages 40 to 80 years
Conditions the study is for
Stroke
What is being tested?
12 weeks of High-intensity Interval Training and 12 weeks of Moderate-Intensity Continuous Training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
80 participants
Where
2 sitesCanada
Study dates
1 Jan 2020to Dec 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 6-60 months following first-ever, single stroke confirmed by MRI/CT
  • Living in the community and able to independently walk at least 10 meters (assistive devices permitted, as this is representative of many people who regain some walking ability following stroke but commonly with some adaptation)
  • Montreal Cognitive Assessment score >20 (individuals with this score are capable to follow exercise instructions)

Who cannot join

  • Significant disability as determined by modified Rankin scale score <2
  • Stroke of non-cardiogenic origin or tumor
  • Actively engaged in stroke rehabilitation services or a structured exercise program besides the one provided in the study
  • Class C or D American Heart Association Risk Criteria
  • Other neurological or musculoskeletal co-morbidities that preclude exercise participation
  • Pain which is worsened with exercise
  • Cognitive, communication, or behavioral issues that would limit safe exercise participation
  • Contraindications to transcranial magnetic stimulation.

Trial locations and contacts

2 sites in 1 country.

Canada2 sites, 2 recruiting
  • Ontario Central South Stroke Network

    Hamilton, Ontario, L8L 2X2

    Ada Tang, PhD, 905-525-9140 ext. 27818, atang@mcmaster.ca

    Jennifer Crozier, MSc, croziej@mcmaster.ca

    Recruiting
  • Jewish Rehabiliation Hospital

    Laval, Quebec, H7V 1R2

    Marc Roig, PhD, 450-688-9550 ext. 4677, marc.roigpull@mcgill.ca

    Jean-Francois Nepveu, MSc, 450-688-9550 ext. 4217

    Recruiting

Other trials in Canada

About this study

Official title: Exercise Intensity Matters: An Opportunity to Promote Neurorecovery and Cardiovascular Health in Stroke

The main objective of this multi-site project is to compare the effects of 12 weeks of HIIT vs. MICT on brain plasticity. The effects of HIIT vs. MICT on cardiovascular health, psychosocial predictors of physical activity and motor function will also be compared. HIIT and MICT will be delivered through a whole-body exercise paradigm using a recumbent stepper that requires arm and leg forces. Outcomes will be assessed at baseline (T0, 0 weeks), at the end of the intervention (T1, 12 weeks) and at 8-week follow-up (T2, 20 weeks).

Read the detailed description

Background: Stroke is a major health issue in Canada, with 405,000 Canadians currently living with stroke. Exercise is an important component of stroke rehabilitation that can result in improved function and health. Traditionally, exercise rehabilitation programs for stroke employ moderate-intensity continuous training (MICT) protocols that are typically sustained for 20-30 minutes. The continuous nature of this form of training however, even at moderate intensities, is challenging for many individuals with stroke to sustain due to neuromotor impairments and poor exercise capacity. High-intensity exercise, when delivered in short interval bursts (i.e. high-intensity interval training, HIIT), may be a feasible alternative that allows higher intensities to be achieved during exercise. This is important because intensity of training is the critical factor in promoting changes in neuroplasticity and cardiovascular health, the two most important aspects of recovery and secondary prevention after stroke. Interventions implemented earlier following stroke are generally viewed to yield greater benefits, but high intensity exercise may also promote neuroplasticity and optimize cardiovascular health in later stages of recovery. Furthermore, determining if HIIT is viewed to be motivating and enjoyable for individuals post-stroke can provide insight into the sustainability of this intervention.

Objective: To compare the effects of 12 weeks of HIIT and MICT on neuroplasticity, cardiovascular health and psychosocial predictors of physical activity in individuals with chronic stroke.

Design: Participants will be recruited from two research sites and randomly allocated into HIIT or MICT. Participants will be assessed before and after the training period, and at an 8-week follow-up.

Outcomes: 1) The investigators will assess: Neuroplasticity: by measuring markers of corticospinal excitability at rest and in response to a non-invasive brain stimulation protocol applied over the primary motor cortex (M1); 2) Cardiovascular health: by measuring cardiorespiratory fitness, resting blood pressure, arterial stiffness, and waist-hip ratio; 3) Psychosocial predictors of physical activity: by measuring exercise motivation and enjoyment.

Methods: Neuroplasticity: motor evoked potentials amplitude, intracortical facilitation and short-intracortical inhibition on the lesioned and unlesioned upper limb M1 area at rest and in response to continuous theta-burst will be measured with transcranial magnetic stimulation; Cardiovascular health: cardiorespiratory fitness will be measured with a graded exercise test, resting blood pressure with an automated blood pressure monitor and arterial stiffness using applanation tonometry. Exercise motivation and enjoyment will be assessed with the Physical Activity Enjoyment Scale and the Behavioral Regulation Exercise Questionnaire-3, respectively.

Expected results: Both HIIT and MICT will result in improvements in outcomes of neuroplasticity and cardiovascular health. However, improvements with HIIT will be greater and will last longer. Participants will rate HIIT as enjoyable as MICT, and motivation for exercise will increase similarly after both interventions.

Impact: HIIT is a promising, time-efficient, and potentially more effective alternative to traditional MICT protocols that could offer an opportunity for greater improvement in motor recovery and cardiovascular health in people living with stroke.

Conditions
Stroke
Being tested
12 weeks of High-intensity Interval Training, 12 weeks of Moderate-Intensity Continuous Training
Keywords
Stroke, Rehabilitation, Neurosciences, Exercise, Neurorecovery, Cardiovascular health, High-intensity interval training, Moderate-intensity continuous training
Medical subject headings
Stroke, Motor Activity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 12 weeks of High-intensity Interval TrainingBehavioural

    Cardiovascular exercise

  • 12 weeks of Moderate-Intensity Continuous TrainingBehavioural

    Cardiovascular exercise

Study groups in NCT03614585
Study groupRoleWhat they receive
High-intensity interval trainingExperimentalIntensity will be determined using a combination of heart rate reserve (HRR, calculated as HRR= [max HR - resting HR] x [% training] + [resting HR]) and ratings of perceived exertion (RPE). The protocol will involve 10 60-second intervals of high intensity interspersed with 9 60-second low-intensity intervals. The initial high intensity intervals will start at 80% of the HRR (RPE=14-17) and progress by 10% every 4 weeks. Low intensity intervals will be performed at 30% of HRR (RPE=9-11). Three-minute warm-up and 2-minute cool-down periods will be performed at 30% of HRR. Total HIIT time including warm-up and cool-down is 24 minutes.
Receives: Behavioral: 12 weeks of High-intensity Interval Training
Moderate-intensity continuous trainingExperimentalIntensity will be determined using a combination of heart rate reserve (HRR, calculated as HRR= [max HR - resting HR] x [% training] + [resting HR]) and ratings of perceived exertion (RPE). The MICT protocol will be increased using a progression schedule previously used (initial intensity at 40% HRR (RPE=9-11), and progressed by 10% HRR every 4 weeks up to 60% HRR (RPE=13-14) will be maintained until the end of the intervention). A 3-minute warm-up and 2-minute cool-down will be performed at 30% HRR (RPE=9-11). The total duration of MICT, including warm-up and cool-down, will be 35 minutes.
Receives: Behavioral: 12 weeks of Moderate-Intensity Continuous Training

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cortico-spinal excitability

    Single pulse of transcranial magnetic stimulation protocol.

    Measured: 12 weeks

Secondary outcomes (7)
  1. Intra-cortical inhibition

    Paired-pulse of transcranial magnetic stimulation protocol.

    Measured: 12 weeks

  2. Intra-cortical facilitation

    Paired-pulse of transcranial magnetic stimulation protocol.

    Measured: 12 weeks

  3. Systolic resting blood pressure

    Supine resting blood pressure.

    Measured: 12 weeks

  4. Diastolic resting blood pressure

    Supine resting blood pressure.

    Measured: 12 weeks

  5. Arterial stiffness

    Central pulse wave velocity.

    Measured: 12 weeks

  6. Cardiorespiratory fitness

    Maximum rate of oxygen consumption measured during maximum physical effort.

    Measured: 12 weeks

  7. Waist-hip ratio

    Ratio of waist circumference measured at the level of the umbilicus, and hip circumference taken at the level of the greater trochanters.

    Measured: 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Aug 2018
  2. Study start1 Jan 2020
  3. Primary completionSep 2024 (estimated)
  4. Study completionDec 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
80 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03614585
Sponsor's protocol ID
388320
Status last verified
Oct 2023
First submitted
26 Jul 2018
Last updated
19 Oct 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Results will be publish in peer-review journals.

Publications

  • Rodrigues L, Moncion K, De Las Heras B, Cristini J, Khalili R, Eng JJ, Fung J, MacKay-Lyons M, Thiel A, Tang A, Roig M. Modulating Brain Excitability with Cardiovascular Exercise in Chronic Stroke: A Randomized Controlled Trial. Neurorehabil Neural Repair. 2025 Oct;39(10):801-813. doi: 10.1177/15459683251351883. Epub 2025 Jul 10.

    PubMed 40637167
  • Rodrigues L, Moncion K, Angelopoulos SA, Heras BL, Sweet S, Eng JJ, Fung J, MacKay-Lyons M, Tang A, Roig M. Psychosocial Responses to a Cardiovascular Exercise Randomized Controlled Trial: Does Intensity Matter for Individuals Post-stroke? Arch Phys Med Rehabil. 2025 Jun;106(6):828-836. doi: 10.1016/j.apmr.2025.01.468. Epub 2025 Jan 31.

    PubMed 39894292
  • Moncion K, Rodrigues L, De Las Heras B, Noguchi KS, Wiley E, Eng JJ, MacKay-Lyons M, Sweet SN, Thiel A, Fung J, Stratford P, Richardson JA, MacDonald MJ, Roig M, Tang A. Cardiorespiratory Fitness Benefits of High-Intensity Interval Training After Stroke: A Randomized Controlled Trial. Stroke. 2024 Sep;55(9):2202-2211. doi: 10.1161/STROKEAHA.124.046564. Epub 2024 Aug 7.

    PubMed 39113181
  • Rodrigues L, Moncion K, Eng JJ, Noguchi KS, Wiley E, de Las Heras B, Sweet SN, Fung J, MacKay-Lyons M, Nelson AJ, Medeiros D, Crozier J, Thiel A, Tang A, Roig M. Intensity matters: protocol for a randomized controlled trial exercise intervention for individuals with chronic stroke. Trials. 2022 May 24;23(1):442. doi: 10.1186/s13063-022-06359-w.

    PubMed 35610659

Questions about this trial

What is this clinical trial studying?

A study testing 12 weeks of High-intensity Interval Training and 12 weeks of Moderate-Intensity Continuous Training in people with Stroke, run by McGill University at 2 sites in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 19 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Marc Roig, PhD (514-398-4400 ext. 00841, marc.roigpull@mcgill.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cortico-spinal excitability (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03614585, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Oct 2023; AzTrials last refreshed its copy on 1 Nov 2026.

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