The placement of grab bars for elderly users is based largely on ADA building codes and does not reflect the large differences in height, mobility, and muscle power between individual persons. The goal of this study is to see if there are any correlations between an elderly user's preferred handlebar pose and various demographic indicators, self-rated mobility for tasks requiring postural change, and biomechanical markers. For simplicity, we consider only the case where the handlebar is positioned directly in front of the user, as this confines the relevant body kinematics to a 2D sagittal plane. Previous eldercare devices have been constructed to position a handlebar in various poses in space. Our work augments these devices and adds to the body of knowledge by assessing how the handlebar should be positioned based on data on actual elderly people instead of simulations.

翻译：老年用户扶手的安装位置主要依据《美国残疾人法案》（ADA）建筑规范，未能充分反映个体间在身高、活动能力及肌肉力量方面的显著差异。本研究旨在探究老年用户偏好的扶手姿态与各类人口学指标、涉及姿势变化任务的自评活动能力以及生物力学指标之间是否存在相关性。为简化分析，本研究仅考虑扶手位于用户正前方的情形，因为该场景可将相关身体运动学约束至二维矢状面内。现有老年护理设备已具备在空间中调整扶手姿态的功能。本研究通过评估基于真实老年人群数据（而非仿真模拟）的扶手定位方法，既完善了现有设备的功能，也扩展了该领域的知识体系。