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StrokeNCT06585943

I-Score: Intensive Stroke Cycling for Optimal Recovery and Economic Value

A study testing Forced Rate Exercise + Rehab and Rehabilitation in people with Stroke, run by The Cleveland Clinic at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Traditional rehabilitation approaches are time and personnel intensive and costly, and leave ~75% of stroke survivors with residual disability. We propose a clinical trial to determine effects of forced aerobic exercise (FE; i.e., mechanically supplemented) in facilitating upper and lower extremity motor recovery… Read more about this study

Who is it for?
Ages 18 to 85 years
Conditions the study is for
Stroke
What is being tested?
Forced Rate Exercise + Rehab and Rehabilitation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
66 participants
Where
1 siteUnited States
Study dates
18 Sep 2024to Apr 2029
Phase
Interventional
Are there results?
Not yet: the study is under way

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 18 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

None listed.

Who cannot join

  • hospitalization for myocardial infarction, heart failure or heart surgery within 3 months
  • cardiac arrhythmia
  • hypertrophic cardiomyopathy
  • history of multiple strokes
  • actively undergoing physical or occupational therapy or enrolled in another interventional study
  • severe aortic stenosis
Show all 17Show fewer
  • untreated deep vein thrombosis or pulmonary embolus
  • unstable angina
  • uncontrolled hypertension
  • implanted pacemaker or defibrillator
  • dyspnea at rest
  • clinically significant neurologic condition/diagnosis other than stroke
  • recent history of elicit drug or alcohol misuse or significant mental health illness
  • significant contractures
  • anti-spasticity injection within 3 months of enrollment
  • skull hardware (e.g. screws/plates) or prior craniotomies that could shunt current flow altering EEG measures
  • other contraindication to exercise or EEGs

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Courtney Miller, PT, DPT contact

216 509-7012

millerc5@ccf.org

Donayja Harris, BS contact

216 445-2007

harrisD47@ccf.org

United States1 site, 1 recruiting
  • Cleveland Clinic

    Cleveland, Ohio, 44195

    Courtney R Miller, DPT, 216-509-7012, millerc5@ccf.org

    Donayja Harris, BS, harrisd47@ccf.org

    Recruiting

Other trials in United States

About this study

Official title: The I-Score (Intensive Stroke Cycling for Optimal Recovery and Economic Value) Trial

Traditional rehabilitation approaches are time and personnel intensive and costly, and leave ~75% of stroke survivors with residual disability. We propose a clinical trial to determine effects of forced aerobic exercise (FE; i.e., mechanically supplemented) in facilitating upper and lower extremity motor recovery post-stroke in an outpatient rehabilitation setting, to elucidate neural and biochemical substrates of FE-induced motor recovery, and to evaluate cost effectiveness of a FE-centered intervention compared to traditional stroke rehabilitation. The global effect of FE has the potential to enhance recovery in a growing population of stroke survivors in a cost-effective manner, thus accelerating its clinical acceptance.

Read the detailed description

Traditional rehabilitation approaches following stroke involve 1:1 motor learning-based training to facilitate recovery of upper extremity (UE) and lower extremity (LE) function. These time- and personnel-intensive approaches are costly, yet leave ~75% of stroke survivors with residual disability. More effective alternative approaches to facilitate motor recovery following stroke have not been adopted clinically due to excessive time and cost. To advance clinical care, both effectiveness and cost of a candidate intervention must be considered simultaneously. Aerobic exercise (AE) is known to improve cardiovascular function following stroke and central nervous system (CNS) function in older adults and neurological populations. Strong theoretical arguments suggest that AE may facilitate motor recovery following stroke. A protocol that rigorously tests this theory in the subacute stroke population is warranted. Animal studies, coupled with our preliminary data, indicate a specific type of exercise - forced aerobic exercise (FE), where volitional movements are mechanically supplemented - improves motor recovery following stroke. The mechanical assistance provided by FE enables patients to achieve a more rapid and consistent exercise pattern beyond their volitional capabilities while maintaining their aerobic effort within a beneficial range. In our initial studies, persons completing FE cycling followed by a reduced dose of UE motor task practice exhibited greater recovery of UE motor function compared to those completing unassisted AE and motor task practice or extended sessions of motor task practice alone. Animal studies have shown that FE triggers the release of brain-derived neurotrophic factor (BDNF) and insulin-like growth factor-1 (IGF-1), thought to be critical building blocks for neuroplasticity. Project Hypothesis: FE facilitates high-intensity AE, which triggers growth factors essential for neuroplasticity, thereby 'priming' the CNS to facilitate motor recovery associated with motor retraining therapies. We propose a prospective, pragmatic clinical trial to determine effects of FE in facilitating UE and LE motor recovery post-stroke in an outpatient rehabilitation setting, to elucidate neural and biochemical substrates of FE-induced motor recovery, and to evaluate cost effectiveness of a FE-centered intervention compared to traditional stroke rehabilitation.

Aim 1: Determine effects of FE+rehab vs. time-matched rehab on the recovery of UE motor function.

Aim 2: Determine effects of FE+rehab vs. time-matched rehab on recovery of lower extremity motor function.

Aim 3: Determine effects of FE+rehab vs. rehab on electrophysiological and biochemical markers of neuroplasticity.

Aim 4: Evaluate cost-effectiveness of FE+rehab vs. rehab. The global effect of FE has the potential to enhance recovery in a growing population of stroke survivors in a cost-effective manner, thus accelerating its clinical acceptance. Our mechanistic aim will elucidate the effects of each approach on substrates underlying neuroplasticity.

Conditions
Stroke
Being tested
Forced Rate Exercise + Rehab, Rehabilitation
Keywords
aerobic exercise, physical therapy, occupational therapy
Medical subject headings
Stroke

What participants receive

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

  • Forced Rate Exercise + RehabBehavioural

    The FE+rehab group (N=33) will complete FE on the cycle designed to augment pedaling rate to >75 RPM. Target heart rate zone will be set to 60-80% of HR reserve. The session will consist of a 5-min warm-up, 35-min main exercise set, and 5-min cool down. Following FE, abbreviated sessions of motor learning-based training will be administered by a neurologic OT and PT experienced in stroke rehabilitation, with 30 min focused on restoration of UE function (OT) and 15 min focused on LE motor function/ gait training (PT).

  • RehabilitationBehavioural

    The rehab group will receive consecutive, full-length sessions of motor learning-based training, administered by a neurologic OT and PT experienced in stroke rehabilitation, with 45 min focused on restoration of UE function (OT) and 45 min focused on LE motor function/ gait training (PT).

Study groups in NCT06585943
Study groupRoleWhat they receive
Forced Rate Exercise + RehabilitationActive comparatorThe forced rate exercise+rehab group (N=33) will complete FE on the cycle designed to augment pedaling rate to >75 revolutions per minute (RPM). Target heart rate zone will be set to 60-80% of heart rate (HR) reserve. The session will consist of a 5-min warm-up, 35-min main exercise set, and 5-min cool down. Following FE, abbreviated sessions of motor learning-based training will be administered by a neurologic OT and PT experienced in stroke rehabilitation, with 30 min focused on restoration of UE function (OT) and 15 min focused on LE motor function/ gait training (PT).
Receives: Behavioral: Forced Rate Exercise + Rehab
RehabilitationActive comparatorThe rehab group will receive consecutive, full-length sessions of motor learning-based training, administered by a neurologic OT and PT experienced in stroke rehabilitation, with 45 min focused on restoration of UE function (OT) and 45 min focused on LE motor function/ gait training (PT).
Receives: Behavioral: Rehabilitation

What is being measured

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

  1. Upper Extremity Fugl-Meyer Motor Assessment

    Impairment-based measure of the upper extremity post-stroke.

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  2. Gait Velocity

    Gait velocity obtained using motion capture.

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  3. Plasma IGF-1

    Blood biomarker for neuroplasticity

    Measured: Before and after first and 24th treatment session

  4. Serum BDNF

    Blood biomarker for neuroplasticity

    Measured: Before and after first and 24th treatment session

  5. electroencephalograms

    Electroencephalograms will be obtained to determine the degree of active engagement of different cortical areas during active/passive UE and LE movements

    Measured: Baseline and end of treatment at 12 weeks

  6. electroencephalograms

    Electroencephalograms will be obtained to determine the degree of active engagement of different cortical areas under each cycling condition

    Measured: Baseline and end of treatment at 12 weeks

  7. electroencephalograms

    Electroencephalograms will be obtained to quantify inter-area communication and direction of information flow.

    Measured: Baseline and end of treatment at 12 weeks

  8. Incremental cost-effectiveness ratio

    Incremental cost-effectiveness ratio (ICER) expressed as cost per quality of life years (QALY) will be computed using a healthcare perspective.

    Measured: baseline to end of treatment at 12 weeks and baseline to end of treatment + 6 months

  9. Stroke Impact Scale

    Self-reported quality of life measure, normalized to a score from 0-100 with higher scores indicative of better self-reported quality of life

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

Secondary outcomes (19)
  1. Action Research Arm Test

    Measure of upper extremity gross and fine motor function post-stroke

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  2. Biomechanical Dexterity Task

    Force tracking task - accuracy within targeted range

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  3. Biomechanical measure of maximum grasp force

    maximum grasp force measured with force transducer

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  4. Bimanual Dexterity Task

    Time to complete task when separating 2 force transducers

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  5. Six minute walk test

    Measure of walking capacity

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  6. Lower Extremity Fugl-Meyer Motor Assessment

    Impairment-based measure of the lower extremity post-stroke.

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  7. Biomechanical Gait Analysis

    Biomechanical assessment of the following spatio-temporal components of gait using motion capture: % of gait cycle spent in swing and stance phases, and in single and double limb support.

    Measured: Baseline, end of treatment at 12 weeks, end of treatment + 6 months

  8. Biomechanical Gait Analysis

    Biomechanical assessment of gait cadence (steps/minute)

    Measured: Baseline, end of treatment at 12 weeks, end of treatment + 6 months

  9. Biomechanical Gait Analysis

    Biomechanical assessment of stride length

    Measured: Baseline, end of treatment at 12 weeks, end of treatment + 6 months

  10. Biomechanical Gait Analysis

    Biomechanical assessment of the following components of gait kinetics using motion capture: 1) peak anterior-posterior propulsion forces, 2) peak anterior-posterior braking forces, 3) peak vertical ground reaction forces, 4) peak lateral ground reaction forces.

    Measured: Baseline, end of treatment at 12 weeks, end of treatment + 6 months

  11. Biomechanical Gait Analysis

    Biomechanical assessment of the following components of gait kinetics using motion capture: 1) total hip extension moment 2) total knee extension moment, 3) total ankle plantarflexion extension moment

    Measured: Baseline, end of treatment at 12 weeks, end of treatment + 6 months

  12. Biomechanical Gait Analysis

    Biomechanical assessment of the following components of gait kinetics during stance phase using motion capture: 1) total hip extension power 2) total knee extension power, 3) total ankle plantarflexion extension power

    Measured: Baseline, end of treatment at 12 weeks, end of treatment + 6 months

  13. Biomechanical Gait Analysis

    Biomechanical assessment of the following kinematic components of gait using motion capture: hip flexion/extension, knee flexion/extension, ankle plantar- and dorsi-flexion

    Measured: Baseline, end of treatment at 12 weeks, end of treatment + 6 months

  14. Plasma BDNF

    Blood biomarker for neuroplasticity

    Measured: Before and after first and 24th session

  15. Somatosensory evoked potentials

    lower extremity somatosensory evoked potentials

    Measured: Baseline

  16. Modified Rankin Scale

    Measure of disability

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  17. Peak oxygen consumption (Peak VO2)

    Measure of cardiorespiratory function

    Measured: Baseline to end of treatment at 12 weeks

  18. Patient-Reported Outcomes Measurement Information System (PROMIS) Computerized Adaptive Test (CAT) v 2.0 Physical Function

    Self-reported quality of life measure of physical function computed as normalized T-scores (1-100 range), with higher scores indicative of greater self-reported quality of life

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

  19. Patient-Reported Outcomes Measurement Information System (PROMIS) Computerized Adaptive Test (CAT) v 2.0 Ability to Participate in Social Roles

    Self-reported quality of life measure computed as a normalized T-score (0-100 range), with higher scores indicative of greater self-reported participation

    Measured: Baseline to end of treatment at 12 weeks and end of treatment + 6 months

Timeline

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

  1. First posted19 Sep 2024
  2. Study start18 Sep 2024
  3. Primary completionOct 2028 (estimated)
  4. Study completionApr 2029 (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
Model description
prospective, single-center, parallel group, rater-blind, pragmatic randomized clinical trial
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
66 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06585943
Sponsor's protocol ID
IRB 23-1262
Status last verified
Sep 2026
First submitted
27 Aug 2024
Last updated
16 Sep 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Forced Rate Exercise + Rehab and Rehabilitation in people with Stroke, run by The Cleveland Clinic at 1 site in United States.

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 0 inclusion and 17 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: looking for participants now, as of the sponsor's last update on 16 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Courtney Miller, PT, DPT (216 509-7012, millerc5@ccf.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Upper Extremity Fugl-Meyer Motor Assessment (time frame: Baseline to end of treatment at 12 weeks and end of treatment + 6 months). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 16 Sep 2026.

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