Orthosis and prosthesis is an expert knowledge in medical field including the design, fabrication and utilizing of orthosis and prosthesis. An orthosis is a device made of different types of material (plastic, aluminum, foam, leather, etc.) used externally on body segments to modify the structural or functional characteristics of musculoskeletal system to objectives such as: reducing pain, rest...

In the development of a powered ankle-foot prosthesis, it is desirable to provide the prosthesis with the ability to exhibit human-like dynamics. A simple method for achieving this goal involves trajectory tracking, where a specific target torque trajectory is known, and the controller issues commands to follow the trajectory as closely as possible. However, without a methodology to update the ...

Abstract Clinical trials have shown that the storage and release of energy in prosthetic feet plays a major role resulting walking comfort for patient. In comparison to rigid multi‐axis feet, dynamic‐response show good capabilities thereby increase To accurately simulate such prosthesis gait cycle simulation, its model has represent deformation as possible. Based on theory predeformed geometric...

This research presents the design and preliminary evaluation of an electromyographically (EMG) controlled 2-degree-of-freedom (DOF) ankle-foot prosthesis designed to enhance rock climbing ability in persons with transtibial amputation. The comprises motorized ankle subtalar joints, is capable emulating some key biomechanical behaviors exhibited by complex during maneuvers. free space motion dev...

Amputees using passive ankle-foot prostheses tend to expend more metabolic energy during walking than non-amputees, and reducing this cost has been a central motivation for the development of active ankle-foot prostheses. Increased push-off work at the end of stance has been proposed as a way to reduce metabolic energy use, but the effects of push-off work have not been tested in isolation. In ...