JACIII Vol.21 No.2 pp. 337-341
doi: 10.20965/jaciii.2017.p0337

Short Paper:

Study of the Relationship Between Sit-to-Stand Activity and Seat Orientation

Chikamune Wada* and Shuichi Ino**

*Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
2-4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan
**National Institute of Advanced Industrial Science and Technology
Tsukuba, Ibaraki 305-8566, Japan

September 6, 2016
December 5, 2016
Online released:
March 15, 2017
March 20, 2017
sit to stand, EMG, seat orientation

Sit-to-stand (STS) activity from a chair is an important motion in daily life. Some commercial products assist with STS activity in toilet use. These products control seat orientation by changing three parameters, i.e., seat height, tilt, and shift in a forward-backward direction. The reason for selection of these three parameters for seat orientation control has not been reported. Moreover, there are no reports on the best combination of these parameters. Therefore, in this study, we investigated the relationship between ease of STS activity and seat orientation during STS activity. We found that seat tilting provided good support for STS activity when the seat was in a high position (0.55 m), and shifting the seat forward provided good support for STS activity when the seat was higher than 0.45–0.55 m.

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Last updated on Mar. 24, 2017