2026-03-13T14:03:39Z https://hiroshima.repo.nii.ac.jp/oai

oai:hiroshima.repo.nii.ac.jp:02007082 2025-02-21T09:05:28Z 1730444907710

A virtual myoelectric prosthesis training system capable of providing instructions on hand operations Nakamura, Go Nakamura Go Shibanoki, Taro Shibanoki Taro Kurita, Yuichi Kurita Yuichi Honda, Yuichiro Honda Yuichiro Masuda, Akito Masuda Akito Mizobe, Futoshi Mizobe Futoshi Chin, Takaaki Chin Takaaki Tsuji, Toshio Tsuji Toshio open access This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/ open-access-at-sage). Prosthetic hand virtual training electromyogram MyoBock hand box and block test This article proposes a virtual hand and a virtual training system for controlling the MyoBock—the most commonly used myoelectric prosthetic hand worldwide. As the virtual hand is controlled using the method also adopted for the MyoBock hand, the proposed system provides upper-limb amputees with operation sensibilities similar to those experienced in MyoBock control. It can also display an additional virtual hand for the provision of instructions on hand operation, such as the recommended posture for object grasping and the trajectory desirable to reach a target. In virtual hand control experiments conducted with an amputee to evaluate the proposed virtual hand’s operability, the subject successfully performed stable opening and closing with high discrimination rates (89.3±6.65%), thanks to the virtual hand’s incorporation of the MyoBock’s operational characteristics. A training experiment using the proposed system was also conducted with eight healthy participants over a period of 5 days. The participants were asked to perform the box and block test using the MyoBock hand in a real environment on the first and final days. The results showed that the number of blocks transported in 1 min significantly increased and that the participants using the instruction virtual hand changed the orientation of the hand approaching blocks from vertical to lateral. The outcomes of the experiment indicate that the proposed system can be used to improve MyoBock hand control operation both quantitatively and qualitatively. This work was partially supported by a Grant-in-Aid for Young Scientists B Number 26730111 and a Grant-in-Aid for Scientific Research C Number 26462242. SAGE Publications 2017-09-19 eng journal article VoR https://hiroshima.repo.nii.ac.jp/records/2007082 10.1177/1729881417728452 https://doi.org/10.1177/1729881417728452 1729-8806 1729-8814 International Journal of Advanced Robotic Systems International Journal of Advanced Robotic Systems 14 5 1 1 10 https://hiroshima.repo.nii.ac.jp/record/2007082/files/IJARS_1729881417728452.pdf 1.3 MB