| Project/Area Number |
25350701
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Developmental mechanisms and the body works
|
|---|
| Research Institution | Chiba University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
|---|
| Keywords | 皮膚反射 / 足底部 / 立位 / 歩行 / 歩行周期 / 可塑的変化 / 電気刺激 / 歩行運動 / 部位依存性 / 歩行周期依存性 / ヒト / 高頻度電気刺激 / 可塑性 / 下肢筋 |
|---|
| 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.
|
