Upper limb motion analysis using haptic interface

An objective test for evaluating the functional studies of the upper limbs (UL) in patients with neurological diseases (ND) is presented. The method allows assessment of kinematic and dynamic motor abilities of UL. Our methodology is based on creating a virtual environment, using a computer display...

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Bibliographic Details
Published in:IEEE/ASME transactions on mechatronics 2001-09, Vol.6 (3), p.253-260
Main Authors: Bardorfer, A., Munih, M., Zupan, A., Primozic, A.
Format: Article
Language:English
Subjects:
Applied sciences
Biological and medical sciences
Computer displays
Computer science
control theory
systems
Control theory. Systems
Diseases
Exact sciences and technology
Force control
Friction
Haptic interfaces
Imaging phantoms
Interfaces
Investigative techniques, diagnostic techniques (general aspects)
Kinematics
Labyrinth
Limbs
Mathematical models
Medical sciences
Motion analysis
Multiple sclerosis
Neodymium
Nervous system
Neurology
Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques
Patients
Robotics
Testing
Three dimensional
Virtual environment
Virtual reality
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Summary:An objective test for evaluating the functional studies of the upper limbs (UL) in patients with neurological diseases (ND) is presented. The method allows assessment of kinematic and dynamic motor abilities of UL. Our methodology is based on creating a virtual environment, using a computer display for visual information and a PHANTOM haptic interface. The haptic interface is used as a kinematic measuring device and for providing tactile feedback to the patient. In virtual environment, a labyrinth in patient's frontal plane was created at the start of each test. By moving the haptic interface control stick the patient was able to move the pointer (a ball) through the labyrinth in three dimensions and to feel the reactive forces of the wall. The new test offers a wide range of numerical and graphic results. It has so far been applied to 13 subjects with various forms of ND (e.g., Friedreich Ataxia, Parkinson's disease, Multiple Sclerosis) as well as to healthy subjects. The comparison in performance between right and left UL has been carried out in healthy subjects.
ISSN:1083-4435
1941-014X
DOI:10.1109/3516.951363