Estimation of muscle fatigue using ultrasound image texture

2014 Fiscal Year Final Research Report

• Project/Area Number: 25560369
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Applied health science
• Research Institution: Kyushu University
• Principal Investigator: MURAKI SATOSHI 九州大学, 芸術工学研究科(研究院), 准教授 (70300473)
• Co-Investigator(Kenkyū-buntansha): FUKUDA Osamu 独立行政法人産業技術総合研究所, 生産計測技術研究センター, 研究員 (20357891)
• Co-Investigator(Renkei-kenkyūsha): OGAWA Daisuke 九州大学, 大学院芸術工学府
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 筋疲労 / 超音波 / 画像解析 / 肩こり

Outline of Final Research Achievements

When human muscles are imaged by using ultrasonographic echo imaging (B-mode), different patterns and gray-scale levels (image texture) are observed in the images. The present study hypothesized that the image texture includes information about transient and chronic muscle fatigue, and then compared muscle texture between before and after maximal exercise of the extensor indicis muscle and between individuals with and without shoulder stiffening. Maximal exercise changed part of the image features, which suggests that the muscle texture might be an index of transient muscle fatigue.

Free Research Field

福祉人間工学