The rotational axis approach for resolving the kinematic redundancy of the human arm in reaching movements

The human arm is kinematically redundant with respect to reaching tasks in a 3 dimensional (3D) workspace. Research on reaching movements of the healthy human arm reveals the control strategy of the human motor system, which can be further applied to the upper limb exoskeletons used for stroke rehab...

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Hauptverfasser: Zhi Li, Roldan, Jay Ryan, Milutinovic, Dejan, Rosen, Jacob
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description The human arm is kinematically redundant with respect to reaching tasks in a 3 dimensional (3D) workspace. Research on reaching movements of the healthy human arm reveals the control strategy of the human motor system, which can be further applied to the upper limb exoskeletons used for stroke rehabilitation. Experiments performed on ten healthy subjects have shown that when reaching from one point to another, the human arm rotates around an axis going through the shoulder. The proposed redundancy resolution based on the direction of the axis can predict the arm posture with a higher accuracy comparing to a redundancy resolution that maximizes the motion efficiency. It is also shown that for reaching movements in the comfortable arm motion range, the directions of the axis are constrained by a linear model.
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identifier ISSN: 1094-687X
ispartof 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013, Vol.2013, p.2507-2510
issn 1094-687X
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language eng
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Adult
Arm - physiology
Biomechanical Phenomena
Elbow
Female
Humans
Kinematics
Male
Models, Biological
Movement
Posture
Random access memory
Redundancy
Shoulder
Shoulder - physiology
Vectors
Wrist
title The rotational axis approach for resolving the kinematic redundancy of the human arm in reaching movements
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