| Summary: | 碩士 === 國立臺北科技大學 === 工業設計系創新設計碩士班（碩士在職專班） === 104 === Sit-to-stand (STS) is a demanding activity for older adults. Successful performance of an STS requires the shifting of weight from the buttocks and posterior thighs to the feet. This research aims at developing an assistive device for standing up from bedside, not only for osteoarthritis patients, but also for healthy older generation. For this reason, the assistive device for STS is designed to combine with a bedside cabinet that helps the user to overcome the psychological barrier of perceived stigma.
We conducted two stage experiments based on ergonomics and body movement analysis. The first stage is to verify the effectiveness of three strategic STS models by examining the body weight shifting from lower limbs to the assistive device during STS. The second stage is to identify the optimum height of forearm supporting surface.
The results include: (1) Single Upper Arm Support strategy presented optimal weight shift performance in STS action, which cause significant body weight shift of 24.5, 28.5, 37 kgm respectively to the subjects at 5, 50, 95 percentile rank. In addition, the seat-off loading of Single Upper Arm Support STS strategy reduced to (43%?) of subjects body weight while the seat-off loading of non-assist STS action remained 117% of subjects body weight. (2) The height of forearm supporting surface is suggested to meet users’ elbow height. (3) Embedded Single Forearm Support (SFS) assistive device in the bedside cabinet is positive responded.
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