Analysis of buttoning and unbuttoning motion by musculoskeletal simulation

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K02332
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 08030:Family and consumer sciences, and culture and living-related
• Research Institution: Shinshu University
• Principal Investigator: Horiba Yosuke 信州大学, 学術研究院繊維学系, 准教授 (00345761)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: ボタン / ボタンホール / 筋骨格シミュレーション / 衣服 / バリアフリーデザイン / 動作解析

Outline of Final Research Achievements

In this study, time measurement, sensory evaluation, and motion analysis (musculoskeletal simulation) were conducted for buttoning and unbuttoning to analyze the effects of button size and buttonhole direction. The results showed that there is an inversely proportional relationship between the ease of buttoning/unbuttoning and time required for buttoning/unbuttoning and between the ease of buttoning/unbuttoning and the magnitude of joint torque of the upper limb associated with the buttoning/unbuttoning movement. Additionally, we found that the time required for buttoning/unbuttoning was the shortest, the joint torque associated with the motion was the smallest, and buttoning/unbuttoning was the easiest when the button diameter was 1.5 - 2.0 cm and the buttonhole was vertical or leftward ascending.

Free Research Field

繊維工学、感性工学

Academic Significance and Societal Importance of the Research Achievements

本研究により，ボタンの留め・外しにおいて，ボタンホールの方向は留め・外しのしやすさと動作に影響を及ぼすことが明らかになった．また，本研究は健常な若年者を対象として実施したものであるが，運動機能や感覚機能が低下した高齢者の場合には今回と同等あるいはそれ以上の影響が予想されることから，高齢者向け衣服を設計する際にはボタンホールの方向についても留意すべきことが示唆された．そのため，本研究の成果は，ユニバーサルデザインを考慮した衣服の設計の基礎データとなることが期待される．