Error Enhancement of the Velocity Component

NCT02017093 | Completed Results

• 2 other identifiers: UHaifaCEli
• Study Type: interventional
• Target: 7
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Stroke; Hemiparesis

Keywords

CVA, rehabilitation

Outcome Measures

Primary Outcomes (2)

• Improvement in Average Movement Trajectory Error From T1 to T2

  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.

  The outcome was assessed at the begining of the rehabilitation (T1) and about 5 weeks later at the end of rehabilitation (T2).

• Fugl-Meyer Assessment Score

  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.

  The measured assessed at the begining of the rehabilitation (T1) and about 5 weeks later at the end of the rehabilitation (T2).

Study Arms (2)

Error Enhancement

EXPERIMENTAL

Training of the upper extremity, using a robotic devise with error enhanced forces and traditional therapy.

Device: Error Enhancement

Control treatment

EXPERIMENTAL

Training of the upper extremity, using a robotic devise without forces applied and traditional therapy.

Device: control treatment

Interventions

Error Enhancement DEVICE

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.

Also known as: Experimental: Error Enhancement of the Velocity Component

Error Enhancement

control treatment DEVICE

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.

Control treatment

Eligibility Criteria

• Age: 40 Years - 80 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• 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

You may not qualify if:

• Perceptual, apraxic, or major cognitive deficits,
• Shoulder joint subluxation or pain in the upper-limb, and
• Spasticity \> 1 (single muscle Modified Ashworth Scale).

Sponsors & Collaborators

• University of Haifa: lead
• Ben-Gurion University of the Negev: collaborator
• Tel Aviv University: collaborator

Study Sites (1)

Reuth Medical Center

Tel Aviv, Israel

Location

Related Publications (1)

• 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.

  RESULT

Related Links

• Click here for more information about this study: http://www.ncbi.nlm.nih.gov/pubmed/18326055

MeSH Terms

Conditions

Stroke; Paresis

Condition Hierarchy (Ancestors)

Cerebrovascular Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Vascular Diseases; Cardiovascular Diseases; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Results Point of Contact

• Title: Prof. Eli Carmeli
• Organization: University of Haifa

ecarmeli@univ.haifa.ac.il

972-4-8288-397

Study Officials

• Eli Carmeli, PhD

  University of Haifa

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: No
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: DIAGNOSTIC
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Prof

Study Record Dates

• First Submitted: June 20, 2013
• First Posted: December 20, 2013
• Study Start: January 1, 2009
• Primary Completion: July 1, 2012
• Study Completion: May 1, 2013
• Last Updated: January 13, 2016
• Results First Posted: January 13, 2016

Record last verified: 2015-06

Locations

IL (1)