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Effect of noise enhanced sensory input by electric stimulation for dynamic gait balance

Research Project

Project/Area Number 20H04095
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 59030:Physical education, and physical and health education-related
Research InstitutionShijonawate Gakuen University

Principal Investigator

Aoki Osamu  四條畷学園大学, リハビリテーション学部, 教授 (50637535)

Co-Investigator(Kenkyū-buntansha) 大谷 啓尊  神戸国際大学, リハビリテーション学部, 助教 (50732997)
森下 慎一郎  福島県立医科大学, 保健科学部, 教授 (60635077)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywordsバランス / 電気刺激 / ノイズ / ノイズ電気刺激 / 歩行 / 確率共振
Outline of Research at the Start

我々は、立位保持に必要な内耳感覚に対する介入として、ノイズ前庭電気刺激を用いて脳卒中患者の静的立位バランスが改善することを明らかにしてきたが、動的バランスに対する改善効果は不十分であった。
この要因として、内耳からの入力情報は体性感覚と比較して感度が低いために、動的バランスを制御するには時間的に遅れてしまう可能性が考えられた。このため本研究では内耳および体性感覚へのノイズ電気刺激を同時に実施する方法により、動的バランスの改善効果を検証する。さらに、継続した介入が歩行に与える影響についても検証する。

Outline of Final Research Achievements

The purpose of this study was to quantitatively evaluate sensory re-weighting when integrating several sensory information that contributes to balance control, and to clarify the influence of noise vestibular electrical stimulation on dynamic balance.
A study conducted on healthy young participants revealed that the weight given to vestibular sensations in balance control is reduced to a certain extent by other sensory inputs. On the other hand, no effect of noisy vestibular electrical stimulation on dynamic balance was observed in healthy young subjects and stroke patients. It was suggested that it is necessary to search for the optimal stimulation intensity by changing the noise type and stimulation intensity.

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的意義としては、バランス制御における前庭感覚の寄与度を定量的に評価できる可能性を示したこと、他の感覚情報により前庭感覚への依存度が減少することを示したことにある。また、ノイズ電気刺激により動的バランス改善の効果が示されなかった否定的結果にも意義がある。一方でノイズ条件や刺激強度など詳細な検討ができなかったことから、十分にその影響を解明できたとは言い難い側面もある。また、動的バランスを改善させる手法を明らかにできなかったことから、社会的意義としては十分ではなく今後の課題とする。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (4 results)

All 2024 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 3 results)

  • [Journal Article] Fear-related visual stimuli do not promote internal focus of attention in older adults2024

    • Author(s)
      Otani Yoshitaka、Aoki Osamu
    • Journal Title

      Gait & Posture

      Volume: 108 Pages: 70-76

    • DOI

      10.1016/j.gaitpost.2023.11.011

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Differences in the Relationships Between Muscle Strength, Muscle Mass, Balance Function, and Quality of Life for Middle-Aged and Older Breast Cancer Survivors2022

    • Author(s)
      Morishita Shinichiro、Kasahara Ryuichi、Yamamoto Yuichi、Jinbo Ryohei、Takano Aya、Yasuda Mitsuhiko、Tsubaki Atsuhiro、Aoki Osamu、Fu Jack B.、Tsuji Tetsuya
    • Journal Title

      Integrative Cancer Therapies

      Volume: 21 Pages: 1-11

    • DOI

      10.1177/15347354221138574

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Relationship between balance function and QOL in cancer survivors and healthy subjects2021

    • Author(s)
      Morishita Shinichiro、Hirabayashi Ryo、Tsubaki Atsuhiro、Aoki Osamu、Fu Jack B.、Onishi Hideaki、Tsuji Tetsuya
    • Journal Title

      Medicine

      Volume: 100 Issue: 46 Pages: e27822-e27822

    • DOI

      10.1097/md.0000000000027822

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immediate changes in anticipatory muscle activity after unexpected muscle contraction training2020

    • Author(s)
      Aoki Osamu、Otani Yoshitaka、Morishita Shinichiro
    • Journal Title

      Translational Sports Medicine

      Volume: 3 Issue: 6 Pages: 574-580

    • DOI

      10.1002/tsm2.168

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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