AzTrials
AzTrials

StrokeNCT03828214

Post Stroke Walking Kinematics Using the Honda Walking Assist Robotic Exoskeleton

A study testing Robotic exoskeleton for walking assist in people with Stroke, run by College of St. Scholastica, Inc. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

To investigate the effect of a robotic exoskeleton on kinematics, muscle activity, ground reaction forces and spatiotemporal characteristics during walking in persons post stroke. Read more about this study

Who is it for?
Ages 18 to 85 years
Conditions the study is for
Stroke
What is being tested?
Robotic exoskeleton for walking assist
Type of treatment
Medical device
How many people
11 participants
Where
1 siteUnited States
Study dates
11 Dec 2018to 31 Aug 2019
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • ≥12 weeks but <1 year post stroke at time of study participation
  • Age: 18-85 years
  • Ability to walk a minimum of 10 meters with standby assistance with or without orthosis or assistive device (Functional Ambulation categories 3, 4 or 5)
  • Able to follow three step commands
  • Express the ability to understand study tasks and purpose
  • Able and willing to provide written informed consent
Show all 10Show fewer
  • Living in the community with the ability to travel to maurices Community Clinic for testing
  • Willingness to wear the StepWatch pedometer for a period of 3 days in their home
  • (If applicable) ≥ 90 days post major orthopedic surgery (such as a joint replacement)
  • (If applicable) ≥ 6 months post cardiac surgery

Who cannot join

  • Serious cardiac conditions (hospitalized for myocardial infarction or heart surgery within 3 months, congestive heart failure, unstable cardiac arrhythmias, hypertrophic cardiomyopathy, severe aortic stenosis, angina or dyspnea at rest or during activities of daily living)
  • Severe arthritis or orthopedic conditions that limit lower extremity range of motion (> 10° or < 90° knee flexion, lacking > 25° hip extension, >15° from neutral plantar flexion.)
  • Preexisting neurologic disorders such as Dementia, Multiple Sclerosis, Amyotrophic Lateral Sclerosis, Parkinson's Disease or Ataxia.
  • History of lower limb amputation, non-healing ulcers, legal blindness or severe visual impairment

Trial locations and contacts

1 site in 1 country.

United States1 site
  • College of St. Scholastica-Health Science Center

    Duluth, Minnesota, 55812

Other trials in United States

About this study

To investigate the effect of a robotic exoskeleton on kinematics, muscle activity, ground reaction forces and spatiotemporal characteristics during walking in persons post stroke.

Read the detailed description

Following stroke walking dysfunction is prevalent. Traditional rehabilitation methods fall short of achieving desirable walking outcomes for most people who experience stroke. Robotic methods to assist walking, such as the Honda Walking Assist Device (HWA) Robot from Honda R \& D Americas Inc., are being explored as a means of improving the recovery of walking post stroke. Prior to examining the effectiveness of exoskeletal robots for walking recovery it is important to understand their effect on kinematic and muscle responses during walking. Kinematic and muscle responses at the hip during walking with the HWA were recently described.

The purpose of this study is to quantify the effect of walking with the HWA on body segments remote from the hip. These segments include knee, ankle, trunk and arm. The non-invasive measures used will include: walking kinematics (measurement of joint angles using cameras), muscle activity (Electromyography), ground reaction forces (detected by a force plate in the floor) and spatiotemporal characteristics (such as walking speed). Measures will be collected under three conditions: 1) walking at self-selected pace (control), 2) walking at self-selected pace with the HWA (4 Newton-meter assist mode for hip flexion and extension), 3) walking immediately following HWA use (aftereffect).

Conditions
Stroke
Being tested
Robotic exoskeleton for walking assist
Keywords
exoskeleton, gait, kinematics, EMG, stair climbing
Medical subject headings
Stroke

What participants receive

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

  • Robotic exoskeleton for walking assistDevice

    Participants will have two testing sessions in this within-subject design experiment. The conditions under which walking will be evaluated are control (normal) walking, walking with the exoskeleton assistance and walking immediately following exoskeleton walking. The conditions under which stair walking (ascending and descending) will be evaluated include control (normal) stairs and exoskeleton assisted stairs. Assistance is provided by The Honda Walking Assist (HWA) System is a robotic device developed by Honda R\&D Corporation ®, Japan. The devices computer-activated motors use hip angle information to guide assistance delivered through the thigh straps to the legs in time with the walking cycle. The maximum torque delivered is 4 Newton-meters.

What is being measured

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

  1. Gait Kinematics

    Difference in affected leg maximum knee flexion angle (initial swing to midswing) between conditions Kinematic Analysis of Gait will be obtained using a Qualisys 8-camera motion capture system. Sample rate 120 Hz. A modified Istituti Ortopedici Rizzoli (IOR) gait marker set (~40 markers) applied bilaterally.

    Measured: Gait kinematics were measured in each of 4 conditions during one 2-hour session for each participant.

Secondary outcomes (3)
  1. Lower Limb Electromyography (EMG)

    Average max EMG of affected tibialis anterior muscle measured during swing phase for walking conditions using Delsys Tringo EMG sensors. Sample rate 2000Hz.

    Measured: Measured during swing phase of gait during each of 4 walking conditions during a single data collection session.

  2. Ground Reaction Force at Terminal Stance

    2 Force platforms were used to quantify ground reaction forces at terminal stance for the affected lower limbs during gait. Sample rate 1200Hz.

    Measured: Force data will be measured at a single time point (in one 2-hour session) for each participant in each of 4 conditions.

  3. Stair Climbing Ascend/Descend Test

    A timed test of the ability to ascend and descend stairs with our without a rail. For this study a flight of 7 stairs will be used. The means of two trials of ascending and descending will be recorded. (Flansbjer et al., 2005)

    Measured: Stairs will be measured at a single time point (in one 2-hour session) for each participant

Timeline

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

  1. First posted4 Feb 2019
  2. Study start11 Dec 2018
  3. Primary completion31 Aug 2019
  4. Study completion31 Aug 2019

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
Basic science
Allocation
Not applicable
Intervention model
Single group
Model description
Within-subject design
Masking
None (open label)
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03828214
Sponsor's protocol ID
001
Status last verified
Feb 2023
First submitted
31 Jan 2019
Last updated
7 Mar 2023
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Robotic exoskeleton for walking assist in people with Stroke, run by College of St. Scholastica, Inc. 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 10 inclusion and 4 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: finished, as of the sponsor's last update on 7 Mar 2023. 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?

Yes. Results are posted in the registry (first posted 7 Mar 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Gait Kinematics (time frame: Gait kinematics were measured in each of 4 conditions during one 2-hour session for each participant.). 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 7 Mar 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in