Perturbed-balance Training During Treadmill Walking for Stroke Subjects
NCT ID: NCT03285919
Last Updated: 2017-09-18
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
2 participants
INTERVENTIONAL
2016-12-05
2017-06-02
Brief Summary
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Detailed Description
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Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
DEVICE_FEASIBILITY
NONE
Study Groups
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Case - stroke survivor
Stroke survivor, 6mon post stroke resulting in right-sided hemiparesis, 53yrs old, had completed a 2mon rehabilitation program prior to the study. He underwent 30 training sessions with the Balance Assessment Robot (BAR™) within a 10-week period, each consisting of 10-15min of unperturbed treadmill and 30-45min of perturbation training. Perturbations were delivered in the forward, backward, left and right direction, occurring every 6sec, at the left leg initial contact and the right leg initial contact. Two training sessions were spent to determine adequate treadmill speed (0.4m/s) and perturbation amplitude (60N), followed by the first assessment session. After the last training session, assessment was repeated using the same parameters plus 90N perturbation amplitude.
Balance Assessment Robot (BAR™)
The BAR™ has got six degrees of freedom (DOF) that interface to the pelvis of a walking subject. Five DOFs (translation of pelvis in sagittal, lateral and vertical directions; pelvic rotation and pelvic list) are actuated and admittance-controlled, providing transparent haptic interaction with negligible power transfer; the remaining DOF (pelvic tilt) is passive. The BAR™ is capable of delivering perturbations in the directions forward/backward and left/right, but for the purpose of this study only "outward" perturbations in the frontal plane were considered.
Control - matched healthy subject
Healthy male, height- and weight-matched to the Case. He was assessed according to the same protocol as the Case using the Balance Assessment Robot (BAR™) at perturbation amplitudes 60 and 90 N.
Balance Assessment Robot (BAR™)
The BAR™ has got six degrees of freedom (DOF) that interface to the pelvis of a walking subject. Five DOFs (translation of pelvis in sagittal, lateral and vertical directions; pelvic rotation and pelvic list) are actuated and admittance-controlled, providing transparent haptic interaction with negligible power transfer; the remaining DOF (pelvic tilt) is passive. The BAR™ is capable of delivering perturbations in the directions forward/backward and left/right, but for the purpose of this study only "outward" perturbations in the frontal plane were considered.
Interventions
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Balance Assessment Robot (BAR™)
The BAR™ has got six degrees of freedom (DOF) that interface to the pelvis of a walking subject. Five DOFs (translation of pelvis in sagittal, lateral and vertical directions; pelvic rotation and pelvic list) are actuated and admittance-controlled, providing transparent haptic interaction with negligible power transfer; the remaining DOF (pelvic tilt) is passive. The BAR™ is capable of delivering perturbations in the directions forward/backward and left/right, but for the purpose of this study only "outward" perturbations in the frontal plane were considered.
Eligibility Criteria
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Inclusion Criteria
* Control: healthy volunteer, height- and weight-matched to the Case
Exclusion Criteria
* any disease or injury affecting balance or gait
MALE
Yes
Sponsors
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University Rehabilitation Institute, Republic of Slovenia
OTHER
Responsible Party
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Principal Investigators
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Zlatko Matjačić, PhD
Role: PRINCIPAL_INVESTIGATOR
University Rehabilitation Institute, Republic of Slovenia
Locations
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University Rehabilitation Institute, Republic of Slovenia
Ljubljana, , Slovenia
Countries
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References
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Olensek A, Zadravec M, Matjacic Z. A novel robot for imposing perturbations during overground walking: mechanism, control and normative stepping responses. J Neuroeng Rehabil. 2016 Jun 11;13(1):55. doi: 10.1186/s12984-016-0160-7.
Matjacic Z, Zadravec M, Olensek A. Feasibility of robot-based perturbed-balance training during treadmill walking in a high-functioning chronic stroke subject: a case-control study. J Neuroeng Rehabil. 2018 Apr 11;15(1):32. doi: 10.1186/s12984-018-0373-z.
Other Identifiers
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URIS201703
Identifier Type: -
Identifier Source: org_study_id