Angular sway propagation in One Leg Stance and quiet stance with Inertial Measurement Units for older adults
conference contributionposted on 10.03.2016 by Weisheng Kong, Salvatore Sessa, Di Zhang, Massimiliano Zecca, Sarah Cosentino, Hiroyuki Ishii, Daniele Magistro, Hikaru Takeuchi, Ryuta Kawashima, Atsuo Takanishi
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Postural stability degrades with age, threating the health and life quality of the older adults. One Leg Stance (OLS) is one of the standard and commonly adopted assessments for postural stability, and the postural sway in OLS has been demonstrated to be related with age. The propagation of postural sway between body segments could be a hint to the underlying mechanism of balance control. However, it is not yet fully understood. Therefore, the aim of this paper was to study the angular sways and their propagation of the head, trunk, and lower limb in healthy older adults. A cross-correlation of the normalized angular speeds was performed and the experiment with 68 older adults was conducted. The results showed that the head, hip and ankle joints affected the transfer of angular sway with a relatively lower correlation and longer latency.
The authors would like to express their thanks to the Italian Ministry of Foreign Affairs, General Directorate for Cultural Promotion and Cooperation for its support to RoboCasa; JSPS Postdoctoral Fellowship Program for Foreigner Researchers FY2012; Tokyo Womens Medical University/Waseda University Joint Institution for Advanced Biomedical Sciences (TWIns); and International Center for Science and Engineering Programs (ICSEP) of Waseda University. The authors would also like to express their gratitude to STMicroelectronics, Life Performance Research, Okino Industries LTD, Japan ROBOTECH LTD, SolidWorks Corp, Dyden, Kyoto Kagaku Co. Ltd., and Asahi Kasei for their support to the research.
- Mechanical, Electrical and Manufacturing Engineering