Annu Int Conf IEEE Eng Med Biol Soc. 2022 Jul;2022:1121-1124. doi: 10.1109/EMBC48229.2022.9871785.
Multiple tasks are simultaneously performed during walking in our daily life. Distracted walk by smartphone usage is recently getting a social problem. The term dual-task gait refers to the secondary task added to the walking. Attention demanding tasks may influence how a person walks. Since in-lab measurement may not accurately reflect the daily living gait, wearable sensors approach have been proposed for gait analysis in an out-of-lab setting. This study addresses the potential of using only two inertial measurement units (IMUs) attached to the shoes for the assessment of cognitive dual-task gait and how it differs from single-task gait. We found that the proposed system is sensitive to recognizing a tiny change in gait features such as on the double support time and gait indices when subject performing dual-task gait compared to the single-task gait experiment.
在日常生活中，我们会同时进行多项任务。最近，人们越来越关注因使用智能手机而导致的分神行走这一社会问题。双重任务步态是指在行走过程中增加的次要任务。注意力要求高的任务可能会影响人的行走方式。由于实验室测量可能无法准确反映日常生活中的步态，因此已经提出了可穿戴传感器方法，以便在非实验室环境中进行步态分析。本研究探讨了仅使用附在鞋子上的两个惯性测量单元（IMU）评估认知双重任务步态的可能性，以及它与单一任务步态的区别。我们发现，与单任务步态实验相比，当被试进行双重任务步态时，所提出的系统能够灵敏地识别出诸如双支撑时间和步态指数等步态特征的微小变化。
