지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Objective: The objective of the study is to develop a portable assistance device to help elderly users reduce strain on the knee and leg muscle while the elderly are standing up.
Background: The pose of standing up from a chair is a basic movement, but the elderly often have difficulty standing up due to their weak muscles. We focus on designing a solution that helps the elderly reduce physical problems and support them standing up.
Method: This study consists of three parts. Part I explores the way to reduce the refrain of leg muscle while standing up from a chair. In the process of structural development, we found that the moment is minimized when user pushes down the armrests due to a decrease in the force acting on the center of mass. In part II, a user test of 20 participants was carried out to rank the order of comfort of two stimuli: the chair with fixed armrests and the chair with the four-link mechanism that we created-in three different ways; (1) to stand up without touching armrests, (2) to stand up by pushing down on fixed armrests, and (3) to stand up by pushing down on armrests and being supported by the mechanism. To examine the statistically significant differences among the rank means, a Friedman test was conducted. In part Ⅲ, we analyze the results of the user test and interview feedbacks, focusing on establishing a design strategy from UPO and visualizing it in 1:1 scale.
Results: In part I, we decided to develop the four-link mechanism. The bottom is lifted up as the link rises. In part II, based on the rank data, we empirically found that UPO was assessed as the most comfortable during the stimuli. The thigh angle is smaller and the bottom of UPO is separated from a seat. In part III, after assessing the results and feedbacks, we created a visualization strategy for UPO: light, friendly, and novel.
Conclusion: The portable and non-mechanical UPO comprises a four-link system that lifts the user"s hips while standing. It can help users avoid knee and leg muscle strain. Its universal design considers the elderly’s difficulties.
Application: In a future study, combining light and durable material in UPO is expected to increase its usability. And this study is an opportunity to design various types of standing assistance devices.
Background: The pose of standing up from a chair is a basic movement, but the elderly often have difficulty standing up due to their weak muscles. We focus on designing a solution that helps the elderly reduce physical problems and support them standing up.
Method: This study consists of three parts. Part I explores the way to reduce the refrain of leg muscle while standing up from a chair. In the process of structural development, we found that the moment is minimized when user pushes down the armrests due to a decrease in the force acting on the center of mass. In part II, a user test of 20 participants was carried out to rank the order of comfort of two stimuli: the chair with fixed armrests and the chair with the four-link mechanism that we created-in three different ways; (1) to stand up without touching armrests, (2) to stand up by pushing down on fixed armrests, and (3) to stand up by pushing down on armrests and being supported by the mechanism. To examine the statistically significant differences among the rank means, a Friedman test was conducted. In part Ⅲ, we analyze the results of the user test and interview feedbacks, focusing on establishing a design strategy from UPO and visualizing it in 1:1 scale.
Results: In part I, we decided to develop the four-link mechanism. The bottom is lifted up as the link rises. In part II, based on the rank data, we empirically found that UPO was assessed as the most comfortable during the stimuli. The thigh angle is smaller and the bottom of UPO is separated from a seat. In part III, after assessing the results and feedbacks, we created a visualization strategy for UPO: light, friendly, and novel.
Conclusion: The portable and non-mechanical UPO comprises a four-link system that lifts the user"s hips while standing. It can help users avoid knee and leg muscle strain. Its universal design considers the elderly’s difficulties.
Application: In a future study, combining light and durable material in UPO is expected to increase its usability. And this study is an opportunity to design various types of standing assistance devices.
목차
1. Introduction
2. Motivation and Goal
3. Development of UPO
4. Conclusion
References
참고문헌 (4)
참고문헌 신청
1. [학술지(정기간행물)] - 배주환 / 2011 / 힙업기능이 적용된 기립보조의자의 생체역학적 평가 / 의공학회지 32 (3) : 191 ~ 197
2. [학술지(정기간행물)] - Dorrenbosch, C.A.M. / 1994 / Two strategies of transferring from sit-to-stand: The activation of monoarticular and biarticular muscles / Journal of Biomechanics 27 (11) : 85 ~ 92
3. [인터넷자원] - / / Participation Rates in Activities by Age Group - 20 Years Old & Over
4. [학술지(정기간행물)] - Shin, K.Y. / 2003 / Biomechanical analysis of the stand-up with respect to stand and sit life pattern / Journal of Korean Society for Agricultural Machinery 32 (3) : 449 ~ 455
2. [학술지(정기간행물)] - Dorrenbosch, C.A.M. / 1994 / Two strategies of transferring from sit-to-stand: The activation of monoarticular and biarticular muscles / Journal of Biomechanics 27 (11) : 85 ~ 92
3. [인터넷자원] - / / Participation Rates in Activities by Age Group - 20 Years Old & Over
4. [학술지(정기간행물)] - Shin, K.Y. / 2003 / Biomechanical analysis of the stand-up with respect to stand and sit life pattern / Journal of Korean Society for Agricultural Machinery 32 (3) : 449 ~ 455
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UCI(KEPA) : I410-ECN-0101-2015-500-002867916