AIMC Topic: Biomechanical Phenomena

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Robotic assessment of the contribution of motor commands to wrist position sense.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
Assessing joint position sense for rehabilitation after neurological injury provides a prognostic factor in recovery and long-term functional outcomes. A common method for testing joint position sense involves the active replication of a joint config...

Towards quantifying dynamic human-human physical interactions for robot assisted stroke therapy.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
Human-Robot Interaction is a prominent field of robotics today. Knowledge of human-human physical interaction can prove vital in creating dynamic physical interactions between human and robots. Most of the current work in studying this interaction ha...

EMU: A transparent 3D robotic manipulandum for upper-limb rehabilitation.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
This paper introduces the EMU, a three-dimensional robotic manipulandum for rehabilitation of the upper extremity for patients with neurological injury. The device has been designed to be highly transparent, have a large workspace, and allow the use ...

Transverse forces versus modified ashworth scale for upper limb flexion/extension in para-sagittal plane.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
Spasticity is a common impairment following an upper motor neuron lesion in conditions such as stroke and brain injury. A clinical issue is how to best quantify and measure spasticity. Recently, research has been performed to develop new methods of s...

Nonlinear disturbance observer based sliding mode control of a cable-driven rehabilitation robot.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
This paper introduces a cable-driven robot for upper-limb rehabilitation. Kinematic and dynamic of this rehabilitation robot is analyzed. A sliding mode controller combined with a nonlinear disturbance observer is proposed to control this robot in th...

Utilization of kinematical redundancy of a rehabilitation robot to produce compliant motions under limitation on actuator performance.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
This paper addresses the mechanical structure and control method of a redundant drive robot (RDR) to produce compliant motions, and show how the design parameters of the RDR can effect the produced motions and the mechanical and performance limitatio...

Interaction force and motion estimators facilitating impedance control of the upper limb rehabilitation robot.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
In order to enhance the performance of rehabilitation robots, it is imperative to know both force and motion caused by the interaction between user and robot. However, common direct measurement of both signals through force and motion sensors not onl...

Randomized, sham-controlled trial based on transcranial direct current stimulation and wrist robot-assisted integrated treatment on subacute stroke patients: Intermediate results.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
The main goal of this study is to analyse the effects of combined transcranial direct current stimulation (tDCS) and wrist robot-assisted therapy in subacute stroke patients. Twenty-four patients were included in this study and randomly assigned to t...

Gait assessment system based on novel gait variability measures.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
In this paper, a novel gait assessment system based on measures of gait variability reflected through the variability of shapes of gait cycles trajectories is proposed. The presented gait assessment system is based on SVM (support vector machine) cla...

Comparison of kinematic and EMG parameters between unassisted, fixed- and adaptive-stiffness robotic-assisted ankle movements in post-stroke subjects.

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
In this paper, we present an assist-as-needed scheme that effectively adapted the assistance provided by an ankle rehabilitation robot according to patient's participation and performance during therapeutic movements. We performed an error-based esti...