Evaluation of gait asymmetry in stroke patients using a tri-axial accelerometer -Lissajous Index visually and numerically evaluates the left-right symmetry from trunk acceleration data-

• Project/Area Number: 17H06534
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Akita University
• Principal Investigator: Terui Yoshino 秋田大学, 医学系研究科, 助教 (30806344)
• Project Period (FY): 2017-08-25 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 脳卒中 / 歩行 / 左右非対称性 / 呼吸機能 / 脳卒中片麻痺 / 3軸加速度計 / 左右対称性 / Lissajous Index / 脳卒中片麻痺患者 / バランス / リサージュ波形 / 加速度

Outline of Final Research Achievements

The gait in stroke patients becomes asymmetrical. The Lissajous Index (LI) visually and numerically evaluates the left-right symmetry from trunk acceleration data. The aim of this study was to examined the relationship between the LI and body function in patients with stroke. The LI of 1 month follow up minus the LI of baseline was delta LI. The ΔLI correlated with the change in the MAS scores (triceps surae muscle) in stroke patients. The improvement of the gait asymmetry of trunk movement was significantly related to the patients' improvement on the MAS in the stroke patients.

Academic Significance and Societal Importance of the Research Achievements

歩行の非対称性は脳卒中患者の歩行能力を最大限向上させるためのポイントの一つであるといわれている。この研究では，歩行時体幹運動左右対称性の経時的変化の評価としてLIが有用であることが示されたと考える。体幹運動左右対称性と下腿三頭筋の筋緊張の関連が認められたことは，今後の脳卒中患者の歩行アプローチを考える際の一助になると考えられる。

Research Products

• [Journal Article] New evaluation of trunk movement and balance during walking in COPD patients by a triaxial accelerometer (2018)
  • Author(s): Terui Yoshino、Iwakura Masahiro、Suto Eriko、Kawagoshi Atsuyoshi、Sugawara Keiyu、Takahashi Hitomi、Hasegawa Kouichi、Uemura Sachiko、Satake Masahiro、Shioya Takanobu
  • Journal Title: International Journal of Chronic Obstructive Pulmonary Disease Volume: Volume 13 Pages: 3957-3962
  • DOI: 10.2147/copd.s184212
  • Peer Reviewed / Open Access
• [Presentation] New evaluation of gait asymmetry in stroke patinets using a tri-axial accelerometer. (2019)
  • Author(s): Yoshino Terui, Eriko Suto, Satomi Iwasawa, Sachiko Uemura, Koich Hasegawa, Masahiro Satake, Takanobu Shioya
  • Organizer: World Confederation for Physical Therapy 2019
  • Int'l Joint Research
• [Presentation] The correlation between respiratory function and gait asymmetry in stroke patients. (2018)
  • Author(s): Terui Y, Suto E, Iwasawa S, Kikuchi K, Furukawa Y, Hasegawa K, Satake M, Shioya T
  • Organizer: 3rd Congress of the Asian Pacific Society of Respirology
  • Int'l Joint Research
• [Presentation] 脳卒中片麻痺患者における呼吸機能と歩行時体幹運動の関連 (2018)
  • Author(s): 照井佳乃，須藤恵理子，岩澤里美，菊地和人，古川大，長谷川弘一，佐竹將宏，塩谷隆信
  • Organizer: 第28回日本呼吸ケア・リハビリテーション学会学術集会
• [Presentation] 歩行時体幹加速度によるCOPD患者の歩行時重心移動と左右対称性 (2017)
  • Author(s): 照井佳乃、岩倉正浩、須藤恵理子、菅原慶勇、高橋仁美、柏倉剛、本間光信、長谷川弘一、佐竹將宏、塩谷隆信
  • Organizer: 第27回日本呼吸ケア・リハビリテーション学会学術集会
• [Presentation] Evaluation of gait symmetry and the center of mass displacement by a trunk acceleration during walking in COPD patients (2017)
  • Author(s): Yoshino Terui, Masahiro Iwakura, Eriko Sutou, Keiyu Sugawara, Hitomi Takahashi, Takeshi Kashiwagura, Mitsunobu Homma, Koichi Hasegawa, Masahiro Satake, Takanobu Shioya
  • Organizer: Congress of Asian pacific society of respirology 2017
  • Int'l Joint Research