Rehabilitation Engineering and Applied Research Laboratory, Georgia Institute of Technology, Atlanta, GA 30318, United States.
Med Eng Phys. 2012 Jul;34(6):781-6. doi: 10.1016/j.medengphy.2012.05.009. Epub 2012 Jun 12.
The goal of this project was to develop and validate a methodology for measuring manual wheelchair movement. The ability to study wheelchair movement is necessary across a number of clinical and research topics in rehabilitation, including the outcomes of rehabilitation interventions, the long-term effects of wheelchair propulsion on shoulder health, and improved wheelchair prescription and design. This study used a wheel-mounted accelerometer to continuously measure distance wheeled, and to continuously determine if the wheelchair is moving. Validation of the system and algorithm was tested across typical mobility-related activities of daily living, which included short slow movements with frequent starts, stops, and turns, and straight, steady state propulsion. Accuracy was found to be greater than 90% across wheelchair and wheel types (spoke and mag), propulsion techniques (manual and foot), speeds, and everyday mobility-related activities of daily living. Although a number of approaches for wheelchair monitoring are currently present in the literature, many are limited in the data they provide. The methodology presented in this paper can be applied to a variety of commercially available products that record bi-axial accelerations, and used to answer many research questions in wheeled mobility.
本项目的目标是开发和验证一种测量手动轮椅运动的方法。研究轮椅运动的能力在康复领域的许多临床和研究课题中都是必要的，包括康复干预的结果、轮椅推进对肩部健康的长期影响，以及轮椅的处方和设计的改进。本研究使用安装在轮子上的加速度计来连续测量轮椅行驶的距离，并连续确定轮椅是否在移动。该系统和算法的验证在典型的与移动相关的日常生活活动中进行，其中包括短距离缓慢移动，频繁的启动、停止和转弯，以及直线、稳定状态推进。结果发现，该系统在轮椅和车轮类型（辐条和磁轮）、推进技术（手动和脚踏）、速度以及日常与移动相关的日常生活活动中，其准确性均大于 90%。尽管目前文献中有许多用于轮椅监测的方法，但许多方法在提供的数据方面存在局限性。本文提出的方法可以应用于记录双轴加速度的各种商业产品，并用于回答轮式移动方面的许多研究问题。
