2022 Fiscal Year Final Research Report
Effects of transcutaneous electrical nerve stimulation on pain facilitation system
| Project/Area Number |
20K23277
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0909:Sports sciences, physical education, health sciences, and related fields
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| Research Institution | Kio University |
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Principal Investigator |
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| Project Period (FY) |
2020-09-11 – 2023-03-31
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| Keywords | 疼痛促通 / 疼痛 / 電気刺激 |
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| Outline of Final Research Achievements |
Pain facilitation amplifies pain sensation within central nervous system. Heightned pain facilitation leads to intensified pain sensation. We investigated the effects of transcutaneous electrical nerve stimulation (TENS) on pain facilitation. Specifically, we explored the influence of TENS on the temporal summation of nociceptive flexion reflex (TS-NFR), a physiological measure of pain facilitation. TENS was found to have no effect on TS-NFR, indicating that it did not modulate pain facilitation in healthy participants. Subsequently, we investigated the effects of TENS on pain facilitation in people with pain. Quantitative sensory testing was employed to assess pain facilitation, and the results revealed limited analgesic effects of TENS in some people with heightened pain facilitation.
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| Free Research Field |
疼痛
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| Academic Significance and Societal Importance of the Research Achievements |
慢性疼痛患者の原因の一つに疼痛促通系の亢進が挙げられる．経皮的電気刺激はこれらに対して影響を与えない可能性が示唆された．慢性疼痛の原因がこれらである場合は，別の鎮痛手段を検討しても良いかと考える．しかし，疼痛の病態は非常に複雑であるので，本研究の結果を踏まえた，さらなる検討も必要と考える．
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