Basic Research on a New Gait Practice Using a Simulated Prosthetic Leg

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K11303
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 59010:Rehabilitation science-related
• Research Institution: Japan Healthcare University
• Principal Investigator: Nishiyama Toru 日本医療大学, 保健医療学部, 准教授 (70404762)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 模擬義足 / 歩行 / 筋電図 / 運動学的分析

Outline of Final Research Achievements

This study aimed to clarify the differences in muscle activity and lower limb joint movement between normal walking in healthy subjects and walking with a simulated prosthetic leg. Measurements were obtained during normal walking and simulated walking. Measurements of simulated walking were obtained immediately after wearing the prosthetic leg and after 2 days of practice with the prosthetic leg. The measurement items were gait speed, lower limb muscle potentials, and lower limb (hip, knee, and ankle) joint angles. The results showed that the use of a simulated prosthetic leg increased the myopotential and hip joint extension angle during the stance phase.
As such, it was suggested that simulated prosthetic leg gait promoted loading on the non-prosthetic side leg and increase muscle activity.

Free Research Field

身体運動学

Academic Significance and Societal Importance of the Research Achievements

片麻痺者への新しい歩行練習方法として報告されている模擬義足療法が身体に与える影響について筋電図学的、運動学的に分析を行った。その結果、模擬義足歩行時の下肢筋活動と関節ピーク値の特徴が明らかとなった。本研究の成果は、脳卒中片麻痺者への模擬義足療法に対する基礎的な資料として活用でき、より詳細な治療効果の検討が可能となる。