Kong W, Sessa S, Zhang D, Zecca M, Cosentino S, Ishii H, Magistro D, Takeuchi H, Kawashima R, Takanishi A
Annu Int Conf IEEE Eng Med Biol Soc. 2015;2015:6955-8. doi: 10.1109/EMBC.2015.7319992.
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.
姿势稳定性会随着年龄增长而下降，这对老年人的健康和生活质量构成威胁。单腿站立（OLS）是姿势稳定性的标准且常用评估方法之一，并且已证明OLS中的姿势摆动与年龄有关。身体各节段之间姿势摆动的传播可能是平衡控制潜在机制的一个线索。然而，目前尚未完全理解。因此，本文的目的是研究健康老年人头部、躯干和下肢的角摆动及其传播。对归一化角速度进行了互相关分析，并对68名老年人进行了实验。结果表明，头部、髋部和踝关节对角摆动传递的影响相对较低，且延迟较长。
