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The human arm including the shoulder, elbow, wrist joints and exclusion scapular motion has 7 Degrees of Freedom (DOF) while positioning of the wrist in space and orientating the palm is a task that requires 6 DOF. As such it includes one more DOF than is needed to complete the task. Given the redundant nature of the arm, multiple arm configurations can be used to complete a task, which is expressed...
There are many applications for which a patient needs functional compensation due to motor disorders in daily activities. Classic research has focused on robotics solutions in terms of actuators or motors, but the point of this paper is to analyze new solutions combining both biological and artificial structures, in order to improve standard developments. Nowadays wearable Robots are taking an important...
Designing an upper extremity exoskeleton for people with arm weakness requires knowledge of the passive and active residual force capabilities of users. This paper experimentally measures the passive gravitational torques of 3 groups of subjects: able-bodied adults, able bodied children, and children with neurological disabilities. The experiment involves moving the arm to various positions in the...
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