http://ieeexplore.ieee.org/abstract/document/8037793/
Abstract:
The
paper suggests a therapeutic device for hemiparesis that combines
robot-assisted rehabilitation and mirror therapy. The robot, which
consists of a motor, a position sensor, and a torque sensor, is provided
not only to the paralyzed wrist, but also to the unaffected wrist to
induce a symmetric movement between the joints. As a user rotates his
healthy wrist to the direction of either flexion or extension, the motor
on the damaged side rotates and reflects the motion of the normal side
to the symmetric angular position. To verify performance of the device,
five stroke patients joined a clinical experiment to practice a
10-minute mirroring exercise. Subjects on Brunnstrom stage 3 had shown
relatively high repulsive torques due to severe spasticity toward their
neutral wrist positions with a maximum magnitude of 0.300kgfm, which was
reduced to 0.161kgfm after the exercise. Subjects on stage 5 practiced
active bilateral exercises using both wrists with a small repulsive
torque of 0.052kgfm only at the extreme extensional angle. The range of
motion of affected wrist increased as a result of decrease in
spasticity. The therapeutic device not only guided a voluntary exercise
to loose spasticity and increase ROM of affected wrist, but also helped
distinguish patients with different Brunnstrom stages according to the
size of repulsive torque and phase difference between the torque and the
wrist position.
Published in:
Engineering in Medicine and Biology Society (EMBC), 2017 39th Annual International Conference of the IEEE
Date of Conference:
11-15 July 2017
Date Added to IEEE Xplore:
14 September 2017
ISBN Information:
Electronic ISSN: 1558-4615
Publisher:
IEEE
Conference Location:
Jeju Island, South Korea, South Korea
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