Development of a sit-to-stand assistive device with pressure sensor for elderly and disabled: a feasibility test

Lee, Kyeongbong; Ha, SinHo; Lee, Kwangkook; Hong, SoungKyun; Shin, HyeonHui; Lee, GyuChang

doi:10.1007/s13246-021-01015-0

Cited by 8 publications

(3 citation statements)

References 26 publications

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“…[4,5] STS assistive devices can help patients with lower limb dysfunction to complete STS movement in daily life, thereby lessening the burden on nursing staff, who may otherwise need to personally assist patients. [6][7][8][9] It can also be used to perform STS movement rehabilitation training for patients, so as to delay the decline of body functions to a certain extent, and to gradually restore muscle strength. [10][11][12][13] Support is the most significant part of STS assistive devices.…”

Section: Introductionmentioning

confidence: 99%

Influence of handrail height and knee joint support on sit-to-stand movement

et al. 2022

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Handrail height and knee joint support both significantly influence sit-to-stand (STS) movement. However, research on the associations between handrail height, knee joint support, and their cumulative effect on STS kinematics and changes in plantar pressure distribution during STS under different handrail heights and knee joint support is still unclear. The main objective of this study was to examine the influence of handrail height and knee joint support on the kinematics and the distribution of plantar pressure in healthy adults during STS. Twenty-six healthy adult subjects aged 23 to 58 years participated in this experiment. The subjects carried out STS movement experiments under 7 conditions: 6 experimental conditions of 3 different heights of handrail, with and without knee joint support, and 1 control condition of standing up naturally. The motions of the markers were recorded using cameras operating at 60 Hz, and total movement time, the percentage of movement time of each phase, trunk tilt angle, joint angle, plantar pressure, and the time from hindfoot to forefoot peak pressure were analyzed and compared. Handrail height significantly influences the percentage of movement time at phase I (P = .015) and the maximum trunk tilt angle (P < .05), knee joint support significantly influences the maximum trunk tilt angle and ankle angle (P = .033), and handrail height and knee joint support have an interaction on the time from hindfoot to forefoot peak pressure (P < .001). Subjects' STS performance was improved with the use of assistant devices but showed particular improvement under the condition of with knee joint support when the handrail height was middle handrail.Abbreviations: H1 = low handrail, H2 = middle handrail, H3 = high handrail, KH1 = carried out STS movement with knee joint support when the handrail height was H1, KH2 = carried out STS movement with knee joint support when the handrail height was H2, KH3 = carried out STS movement with knee joint support when the handrail height was H3, NS = stand up naturally, STS = sit-to-stand.

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Section: Introductionmentioning

confidence: 99%

Influence of handrail height and knee joint support on sit-to-stand movement

et al. 2022

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“…The elderly seat with lifting function (standing assistive seat) has been a researching hotspot in recent years. Many enterprises in the world have invested a lot in the research and development of standing assistive seats suitable for the elderly [3][4][5][6]. Lei etc.…”

Section: Introductionmentioning

confidence: 99%

“…Lee etc. [4] developed a sit-to-stand motion assistive chair which can detect the user's weight through a load sensor and assist them to stand up by adjusting the speed themselves according to their weight and preference. They investigated the feasibility of the developed device as a real design case.…”

Section: Introductionmentioning

confidence: 99%

Research and design of standing assistive seats for elderly based on Biomechanics Theory

Tian

Zhao²,

Fan³

2022

International Conference on Advanced Sensing and Smart Manufacturing (ASSM 2022)

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In the context of aging society, the standing assistive seats become more and more necessary to the elderly. The research methodologies of standing assistive seat design for the elderly is explored based on biomechanics theory and verified through a design case in this paper. Firstly, through questionnaire survey and in-situ observation, the physiological and psychological characteristics of the elderly were analyzed, and their practical needs for assistive seats were mastered. Then, based on the biomechanics theory, the stress of the bone system of the elderly in the process of sit-to-stand was analyzed and a set of innovative design schemes of standing assistive seats for the elderly was built. A specific design case was proposed to verify the feasibility of the design strategy. Results show that the research method and design strategy based on the biomechanics can be effectively applied in the design of the standing assistive seats for the elderly. It can be concluded that in this way, we can meet the special physiological and psychological needs of the elderly, and create a convenient and comfortable living environment for them.

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