TY - JOUR
T1 - Myoelectric Prosthesis Users Improve Performance Time and Accuracy Using Vibrotactile Feedback When Visual Feedback Is Disturbed
AU - Raveh, Eitan
AU - Portnoy, Sigal
AU - Friedman, Jason
N1 - Publisher Copyright:
© 2018 American Congress of Rehabilitation Medicine
PY - 2018/11
Y1 - 2018/11
N2 - Objective: To evaluate the effects of adding vibrotactile feedback (VTF) in myoelectric prosthesis users during performance of a functional task when visual feedback is disturbed. Design: A repeated-measures design with a counter-balanced order of 3 conditions. Setting: Laboratory setting. Participants: Transradial amputees using a myoelectric prosthesis with normal or corrected eyesight (N=12, median age 65±13y). Exclusion criteria were orthopedic or neurologic problems. Interventions: All participants performed the modified Box and Blocks Test, grasping and manipulating 16 blocks over a partition using their myoelectric prosthesis. This was performed 3 times: in full light, in a dark room without VTF, and in a dark room with VTF. Main Outcome Measures: Performance time, that is, the time needed to transfer 1 block, and accuracy during performance, measured by number of empty grips, empty transitions with no block and block drops from the hand. Results: Significant differences were found in all outcome measures when VTF was added, with improved performance time (4.2 vs 5.3s) and a reduced number of grasping errors (3.0 vs 6.5 empty grips, 1.5 vs 4 empty transitions, 2.0 vs 4.5 block drops). Conclusions: Adding VTF to myoelectric prosthesis users has positive effects on performance time and accuracy when visual feedback is disturbed.
AB - Objective: To evaluate the effects of adding vibrotactile feedback (VTF) in myoelectric prosthesis users during performance of a functional task when visual feedback is disturbed. Design: A repeated-measures design with a counter-balanced order of 3 conditions. Setting: Laboratory setting. Participants: Transradial amputees using a myoelectric prosthesis with normal or corrected eyesight (N=12, median age 65±13y). Exclusion criteria were orthopedic or neurologic problems. Interventions: All participants performed the modified Box and Blocks Test, grasping and manipulating 16 blocks over a partition using their myoelectric prosthesis. This was performed 3 times: in full light, in a dark room without VTF, and in a dark room with VTF. Main Outcome Measures: Performance time, that is, the time needed to transfer 1 block, and accuracy during performance, measured by number of empty grips, empty transitions with no block and block drops from the hand. Results: Significant differences were found in all outcome measures when VTF was added, with improved performance time (4.2 vs 5.3s) and a reduced number of grasping errors (3.0 vs 6.5 empty grips, 1.5 vs 4 empty transitions, 2.0 vs 4.5 block drops). Conclusions: Adding VTF to myoelectric prosthesis users has positive effects on performance time and accuracy when visual feedback is disturbed.
KW - Amputation
KW - Prosthesis
KW - Rehabilitation
KW - Sensory feedback
KW - Visual feedback
UR - http://www.scopus.com/inward/record.url?scp=85050865212&partnerID=8YFLogxK
U2 - 10.1016/j.apmr.2018.05.019
DO - 10.1016/j.apmr.2018.05.019
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AN - SCOPUS:85050865212
SN - 0003-9993
VL - 99
SP - 2263
EP - 2270
JO - Archives of Physical Medicine and Rehabilitation
JF - Archives of Physical Medicine and Rehabilitation
IS - 11
ER -