2015 Fiscal Year Final Research Report
Plastic changes in cutaneous reflexes in the lower limb muscles following high-frequency electrical stimulation to the sole, and their application to induce modulation of the walking cycle
| Project/Area Number |
25350701
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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 |
Developmental mechanisms and the body works
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| Research Institution | Chiba University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 皮膚反射 / 足底部 / 立位 / 歩行 / 歩行周期 / 可塑的変化 |
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| Outline of Final Research Achievements |
The present study investigated the effect of high-frequency (333 Hz) and sustained (200 ms) electrical stimulation (HFES) to a given sole region during standing and walking. Also, location-dependent cutaneous reflexes were investigated during walking. During standing, inhibitory cutaneous reflexes in the ankle flexor muscles following the HFES of a given sole region were attenuated for ~30 min. During walking, forefoot medial (f-M) in the sole induced facilitation during stance to swing transition phases, but heel (HL) stimulation evoked suppression during the late stance to the end of swing phases. After delivering HFES to f-M or HL for 10 min at the stance to swing transition phase during walking, cycle duration of walking was prolonged or shortened, respectively. Both changes in cycle duration were retained for ~20 min. These findings suggest that HFES to specific sole regions a given walking phase can induce plastic changes in walking cycle duration.
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| Free Research Field |
運動生理学
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