| Project/Area Number |
24590230
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
General anatomy (including Histology/Embryology)
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| Research Institution | Yamagata University |
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Principal Investigator |
NAITO Akira 山形大学, 医学部, 教授 (90188855)
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| Research Collaborator |
KATO Katsuhiko
NAGANUMA Makoto
YOSHIDA Saori
HASHIZUME Wataru
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | ヒト上肢 / 神経筋電気刺激（ENS） / 手根伸筋群 / 手根屈筋群 / 組合せENS / 組合せ神経筋電気刺激 |
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| Outline of Final Research Achievements |
A force and motion of the wrist produced by a combined electrical neuromuscular stimulation (ENS) to wrist extensors and flexors were studied in healthy human subjects. The combined ENS was delivered to a pair of two muscles (A, B) of which actions are adjacent to each other. ENS to each muscle with the intensity for the maximum contraction produced a force (AF, BF) and a wrist-bending motion to the maximal range of motion in each individual direction (AM, BM). Simultaneous ENS to the two muscles produced a force in direction between AF and BF, and a wrist-bending motion of the maximum range in direction between AM and BM. Alternating ENS to the two produced and a to-and-flow force between AF and BF, and an arc-drawing motion along a trajectory of the maximum wrist circumduction motion between AM and BM. These findings suggest a possibility that the combined ENS produces a wrist-bending force and motion in every direction and a clockwise and counterclockwise force and motion.
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