Error Enhancement of the Velocity Component
2015年12月9日 更新者：Carmeli Eli、University of Haifa
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.
研究概览
详细说明
The wrist of the subject is connected to the robotic arm by a strip which supports the arm but allows free movements of the wrist.
This configuration allows subjects with impaired grasping ability to use the system.
A bio-feedback system enables the subject to perform various functional motor tasks that are presented on the screen in front of him.
The system's sensors detect motor errors or deviations from an optimal/proper movement trajectory or velocity profile.
Any deviation in direction, velocity, acceleration or necessary force from the optimal trajectory results in applied robotic forces that enhance such errors/deviations.
The sensors and the applied forces all work and compute in real time, so that the force measurements and the applied force are updated to the executed movement.
研究类型
介入性
注册 (实际的)
7
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
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Tel Aviv、以色列
- Reuth Medical Center
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
40年 至 80年 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
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).
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：诊断
- 分配：随机化
- 介入模型：单组作业
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
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实验性的：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.
其他名称：
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实验性的：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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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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Improvement in Average Movement Trajectory Error From T1 to T2
大体时间：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
大体时间：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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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Eli Carmeli, PhD、University of Haifa
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- 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.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2009年1月1日
初级完成 (实际的)
2012年7月1日
研究完成 (实际的)
2013年5月1日
研究注册日期
首次提交
2013年6月20日
首先提交符合 QC 标准的
2013年12月19日
首次发布 (估计)
2013年12月20日
研究记录更新
最后更新发布 (估计)
2016年1月13日
上次提交的符合 QC 标准的更新
2015年12月9日
最后验证
2015年6月1日
更多信息
与本研究相关的术语
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.