• Title/Summary/Keyword: Prosthetic training

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A Case Study of Myoelectric Hand Prosthesis for Upper Extremity Amputee (상지절단자용 전동의수 증례연구)

  • Kang, Ju-Ho;Kim, Myung-Hoe;Lee, Jeong-Weon
    • Physical Therapy Korea
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    • v.2 no.1
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    • pp.80-87
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    • 1995
  • The purpose of this case study was to introduce a myoelectric hand prosthesis for upper extremity amputee and prosthetic training program. Limb loss can result from disease, injury, or congenital causes. Trauma has been increasingly important role as the cause of amputaion in young, vigorous, and otherwise healthy individuals. The higher the level of amputation the greater the functional loss of the part, and the more the amputee must depend on the prostheis for fuction and cosmesis. Myoelectrical control of prostheses is a recent development and has been steadily gaining in clinical use over the past 20 years. Such a prosthesis uses signals from muscle contraction within the stump to activate a battery driven moter that operates specific component fuctions of the prosthesis. This twenty years old male case was operated a right above-elbow amputation due to tracffic accident and admitted to Yonsei Rehabilitaion hospital for the preprosthetic and prosthetic training. The case was able to successfully complete his myoelectric hand prosthesis training in the February of 1995.

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Effect of Multi-Channel Vibration Stimulation on Somatosensory Sensibility (다채널 진동자극이 체성감각에 미치는 영향)

  • Bae, Tae-Soo;Kim, Hyung-Jae;Kim, Sol-Bi;Chang, Yun-Hee;Kim, Shin-Ki;Mun, Mu-Seong
    • Journal of the Korean Society for Precision Engineering
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    • v.28 no.6
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    • pp.651-656
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    • 2011
  • Although prosthetic training was received, most of amputees mainly depend on visual feedback to use prostheses, not on cutaneous and proprioceptive sensibility. Our objective of this study was to determine if there are changes in the somatosensory sensibility of amputees compared to non-amputees using multi-channel vibration stimulation system. One transradial amputees and ten non-amputees were involved. To investigate changes of residual somatosensory sensibility at stump, we set up custom-made vibration stimulation system including eight actuators (4 medial and 4 lateral) and GUI-based acquisition system. The results showed that there was similar pattern of subjective response at most of channels among group as stimulation increases. However, amputees' subjective response at channel 8 for 238Hz vibration was more sensitive than that of healthy persons. With respect to channels, response at channel 4 (medial) corresponding region to flexor carpi ulnaris for transradial amputees was most sensitive than other channels. In addition, sensitivity of four medial channels was on average about 0.5 scale than that of four lateral channels. Somatosensory sensibility was amputee, women, and men in sensibility order.