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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jarchi, D. Lo, B. Ieong, E. Nathwani, D. Guang-Zhong Yang |
| Copyright Year | 2014 |
| Description | Author affiliation: Imperial Coll. Healthcare NHS Trust, London, UK (Ieong, E.; Nathwani, D.) || Inst. of Global Health Innovation, Hamlyn Centre, Imperial Coll. London, London, UK (Jarchi, D.; Lo, B.; Guang-Zhong Yang) |
| Abstract | The use of e-AR (ear-worn activity recognition) sensor for gait pattern estimation has shown promise for a range of health and wellbeing applications. To establish its more detailed quantitative accuracy, an in-shoe pressure measurement system (Parotec) has been used to validate the estimated gait events from the e-AR sensor. Ten healthy adults equipped with Parotec and e-AR systems walked in a corridor of about 15m. The sampling frequency of both systems was set at 100Hz and a manual synchronisation has been performed for subsequent error measurements. The gait events from the e-AR sensor are estimated by using a recently developed method based on singular spectrum analysis and longest common subsequence algorithms [1]. The corresponding gait events from the Parotec system are estimated using the ground reaction forces. The upper and lower limits of absolute errors using 95% confidence intervals for heel contact and toe off events obtained as 35.38±3.22ms and 73.05±7.24ms respectively. We further provide a preliminary patient study to demonstrate how the estimated gait events and the gait analysis platform can be used for assessing patients recovering after orthopaedic surgery inside the clinic. |
| Starting Page | 127 |
| Ending Page | 131 |
| File Size | 905021 |
| Page Count | 5 |
| File Format | |
| e-ISBN | 9781479949595 |
| DOI | 10.1109/BSN.2014.16 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-06-16 |
| Publisher Place | Switzerland |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Event detection Large Hadron Collider e-AR (ear-worn activity recognition) sensor pressure measurement Measurement uncertainty toe off gait Silicon Acceleration Monitoring heel contact Foot |
| Content Type | Text |
| Resource Type | Article |
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