Suzuki Yasuhiro, Yatoh Shigeru, Suzuki Hiroaki, Tanabe Yuuki, Shimizu Yukiyo, Hada Yasushi, Shimano Hitoshi
Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba: 1-1-1 Tennodai, Tsukuba, Ibaraki 305-0031, Japan.
Department of Rehabilitation Medicine, University of Tsukuba Hospital, Japan.
J Phys Ther Sci. 2018 Jan;30(1):86-91. doi: 10.1589/jpts.30.86. Epub 2018 Jan 27.
[Purpose] The efficacy of a stabilometer-based index of postural stability (IPS) as an indicator of dynamic balance ability was investigated. [Subjects and Methods] Using a stabilometer, we calculated the IPS in 583 healthy subjects (178 males, 405 females) under two conditions (open eyes/hard surface, OE/HS; closed eyes/soft surface, CE/SS). [Results] Results revealed a negative relation between IPS and age. IPS (OE/HS) began to decrease at middle-age (40-60 years old), and then decreased more rapidly during elderly ages (>60 years old). On the other hand, IPS (CE/SS) decreased linearly with increasing age. There was no gender difference between the two IPSs. [Conclusion] These results suggest that IPS can evaluate balance ability quantitatively and without a ceiling effect. It was concluded that IPS (OE/HS) indicates comprehensive balance ability, while IPS (CE/SS) reveals balance ability without compensation by visual acuity and plantar superficial sense.
[目的] 研究基于稳定仪的姿势稳定性指数（IPS）作为动态平衡能力指标的有效性。[对象与方法] 使用稳定仪，我们在两种条件下（睁眼/硬表面，OE/HS；闭眼/软表面，CE/SS）计算了583名健康受试者（178名男性，405名女性）的IPS。[结果] 结果显示IPS与年龄呈负相关。IPS（OE/HS）在中年（40 - 60岁）开始下降，然后在老年（>60岁）期间下降更快。另一方面，IPS（CE/SS）随年龄增长呈线性下降。两种IPS之间没有性别差异。[结论] 这些结果表明IPS可以定量评估平衡能力且无天花板效应。得出的结论是，IPS（OE/HS）表明综合平衡能力，而IPS（CE/SS）揭示了不受视力和足底浅感觉补偿的平衡能力。
