134 Reliability and Usability of Step Sensing System on Gait Speed and Stepping Accuracy Measurement: A Preliminary Evaluation. (20th December 2019)

• Record Type: Journal Article
• Authors: Jesadaporn, Panas; Jayapravitra, Yudh; Khumrin, Piyapong
• Is Part Of: Age and ageing. Volume 48(2019)Supplement 4
• Page Start: iv28
• Page End: iv33
• Publication Date: 2019-12-20
• Subjects: Gait -- Stepping accuracy -- Medical device -- Telehealth -- Reliability testing; Aging -- Periodicals; Geriatrics -- Periodicals; 618.97
• DOI: 10.1093/ageing/afz164.134
• Languages: English
• ISSNs: 0002-0729

Abstract

Abstract: Background: Falls are the most common cause of injury among older people in Thailand. However, there are no established falls prevention programs in our community. Telehealth is one of the strategies to overcome this unmet need. We have developed the Step Sensing System (SSS) for measuring gait speed and stepping accuracy of multi target stepping task (MTST). This system comprises of the footstep sensing modules, controller box and analyzing computer. SSS records each footfall and compares with an assignment for each walking trail. The results will be sent to a cloud storage which are accessible by web-based and mobile applications. By using this technology, we are able to remotely access falls risk and monitor MTST performance in older people. Methods: We placed footstep sensing modules under a 6-metre mat, then asked a 32-year-old healthy woman to walk across the mat for 4 trails: usual-pace, faster-pace, usual-pace with 1 assigned target and usual-pace with 2 assigned targets on an alternating sequence. We evaluated the system reliability by comparing gait speed and stepping accuracy on 3 rd and 4 th trails with video recorded by Intel Realsense TM Depth Camera (model D415). Results: SSS and video recording has excellent correlation for gait speed and stepping accuracy measurement (intraclass correlation coefficient [ICC] > 0.99, p value < 0.001). The user satisfaction measured by the System Usability Scale was 70/100. Conclusions: SSS demonstrated promising results on gait speed and stepping accuracy measurement in controlled environment. For the next step, we plan to increase ability of gait measurement on various parameters and perform the validity assessment in community setting.