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Error Enhancement of the Velocity Component
Error Enhancement of the Velocity Component in the Course of Stroke Patients' Reaching Movements - A Pilot Study
The purpose of this pilot study was to explore the impact of enhancement of the velocity component error in the course of reaching movements of the impaired/hemiparetic limb in an acute stroke subject. We hypothesized that the method would shift velocity profiles toward the optimal, resulting in a reduction in error. A prototype robot. This robotic device system has a two-dimensional motor, basic measurement capacities, and a robotic arm which is engaged to the subject's upper-limb in a sitting position.
The enhancement of the velocity component error would shift velocity profiles toward the optimal, resulting in a reduction in error.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Tel Aviv, Israël
- Reuth Medical Center
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Single stroke
- Two to three weeks post Stroke
- Able to understand simple commands
- Able to perform some reaching movements with the affected arm.
- No other neurological, neuromuscular, orthopedic disorders and visual deficit
Exclusion Criteria:
- Perceptual, apraxic, or major cognitive deficits,
- Shoulder joint subluxation or pain in the upper-limb, and
- Spasticity > 1 (single muscle Modified Ashworth Scale).
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Diagnostisch
- Toewijzing: Gerandomiseerd
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Enkel
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Experimenteel: Error Enhancement
Training of the upper extremity, using a robotic devise with error enhanced forces and traditional therapy.
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Patients underwent upper extremity robotic training with the error enhancement effect.
Training have focused on hand reaching movements in varity of directions and range of motions.
Andere namen:
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Experimenteel: Control treatment
Training of the upper extremity, using a robotic devise without forces applied and traditional therapy.
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Patients underwent upper extremity robotic training without the error enhancement effect.
Training have focused on hand reaching movements in varity of directions and range of motions.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Improvement in Average Movement Trajectory Error From T1 to T2
Tijdsspanne: The outcome was assessed at the begining of the rehabilitation (T1) and about 5 weeks later at the end of rehabilitation (T2).
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While reaching, people have typical movement pattern of trajectory, moving the end-effector (hand) in straight line.
The abnormal motor control after a stroke may cause these patients to deviate from this pattern.
Our robotic device enabled us to measure the magnitude of the deviation from the optimal profile of healthy people.
This was followed by a calculation of the average error the paricipants made in each treatment session.
So we finally recieved a score of the average magnitude of trajectory error the participants made through a treatment session.
Each treatment seesoin composed of about 100 reaching movements.
The outcome measure expresses the change in the movement error from T1 to T2.
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The outcome was assessed at the begining of the rehabilitation (T1) and about 5 weeks later at the end of rehabilitation (T2).
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Fugl-Meyer Assessment Score
Tijdsspanne: The measured assessed at the begining of the rehabilitation (T1) and about 5 weeks later at the end of the rehabilitation (T2).
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The Fugl-Meyer assessment score (FM) is a zero (disabaled function) to 66 points (high level of function) scale that evaluates the level of the motor impairment of the upper extremity, in stroke patients.
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The measured assessed at the begining of the rehabilitation (T1) and about 5 weeks later at the end of the rehabilitation (T2).
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Eli Carmeli, PhD, University of Haifa
Publicaties en nuttige links
Algemene publicaties
- Givon-Mayo R, Simons E, Ohry A, Karpin H, Israely S, Carmeli E. A preliminary investigation of error enhancement of the velocity component in stroke patients' reaching movements. International Journal of Therapy and Rehabilitation. 2014;21(4):160-168.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- UHaifa
- CEli (Register-ID: Eli Carmeli)
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