菜单
  
    Author for Correspondence Abstract- This paper presents a novel, smart and portable
    Active Knee Rehabilitation Orthotic Device (AKROD)
    designed to train stroke patients to correct knee hyperextension
    during stance and stiff-legged gait (defined as reduced knee
    flexion during swing). The knee brace provides variable
    damping controlled in ways that foster motor recovery in
    stroke patients. A resistive, variable damper, electro-
    rheological fluid (ERF) based component is used to facilitate
    knee flexion during stance by providing resistance to knee
    buckling. Furthermore, the knee brace is used to assist in knee
    control during swing, i.e. to allow patients to achieve adequate
    knee flexion for toe clearance and adequate knee extension in
    preparation to heel strike. The detailed design of AKROD, the
    first prototype built, closed loop control results and initial
    human testing are presented here.6217
    Index Terms - Electro-Rheological Fluids, Rehabilitation
    Robotics
    I. INTRODUCTION
    Stroke is a leading cause of permanent disability in the
    Unites States. According to the National Stroke Association,
    each year about 730,300 people suffer a stroke, and
    approximately two-thirds of these inpiduals survive and
    require rehabilitation [1]. Approximately 80% of stroke
    survivors present an early motor deficit, with 50% having
    chronic deficits. Impairments such as spasticity, muscle
    weakness, loss of range of motion, and impaired force
    generation create deficits in motor control that affect the
    stroke survivor's capacity for independent living. Robotic
    and mechatronic technologies that can be integrated into
    portable devices and can be used by patients in the home
    setting are particularly attractive in the above-discussed
    context because they have the potential of providing tools to
    facilitate functional recovery, reducing cost of treatment and
    providing patients with adequate level of independence.
    Many ambulatory stroke survivors have substantial
    alterations of their gait patterns as a result of the hemiparesis.
    Compromised motor control and force generation frequently
    lead to limited knee flexion and stiff-legged gait, defined as
    limited knee flexion during swing and typically associated
    with limited hip flexion and limited or absent ankle
    dorsiflexion. These gait patterns cause substantial reduction
    in gait velocity and efficiency, and can increase the
    likelihood of falls. In some patients, knee hyperextension
    develops as a mechanism to increase stability during stance.
    Unfortunately, knee hyperextension can cause pain, and is
    believed to lead to premature degenerative joint disease of
    the knee in these inpiduals. Conventional treatments
    largely focus on the use of ankle-foot orthoses (AFO) to
    provide ankle stability and correct knee gait abnormalities.
    Little emphasis is generally aimed at addressing knee
    movement abnormalities via a knee orthosis. This is
    because currently available knee orthoses are bulky and
    rather make it difficult to achieve functional use of the knee.
    The development of an intelligent, actuated knee orthosis
    has the potential to address these issues. Two objectives
    could be pursued with the proposed AKROD: (1) enhancing
    gait retraining, and (2) improving orthotic intervention in the
    home and community settings.
    For many patients, a programmable actuated knee
    orthosis could guide and facilitate the recovery of a more
    efficient and clinically desirable gait pattern via retraining
    sessions. Current clinical practice is generally restricted to
    brief periods of less than 1 hour of gait training and
    provided a few times per week. In between these sessions,
    patients continue to walk using their typical gait pattern, andreinforce compensatory patterns of gait. Lower-extremity
  1. 上一篇:塑料注塑工艺英文文献和翻译
  2. 下一篇:注塑模具设计CAD/CAE集成英文文献和翻译
  1. 当代大学生慈善意识研究+文献综述

  2. 杂拟谷盗体内共生菌沃尔...

  3. 大众媒体对公共政策制定的影响

  4. 十二层带中心支撑钢结构...

  5. 乳业同业并购式全产业链...

  6. 河岸冲刷和泥沙淤积的监测国内外研究现状

  7. 电站锅炉暖风器设计任务书

  8. 酸性水汽提装置总汽提塔设计+CAD图纸

  9. 中考体育项目与体育教学合理结合的研究

  10. java+mysql车辆管理系统的设计+源代码

  

About

751论文网手机版...

主页:http://www.751com.cn

关闭返回