Gait event detection in laboratory and real life settings: Accuracy of ankle and waist sensor based methods

Storm, Fabio A., Buckley, Christopher and Mazzà, Claudia (2016) Gait event detection in laboratory and real life settings: Accuracy of ankle and waist sensor based methods. Gait & Posture, 50. pp. 42-46. ISSN 0966-6362

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Wearable sensors technology based on inertial measurement units (IMUs) is leading the transition from laboratory-based gait analysis, to daily life gait monitoring. However, the validity of IMU-based methods for the detection of gait events has only been tested in laboratory settings, which may not reproduce real life walking patterns. The aim of this study was to evaluate the accuracy of two algorithms for the detection of gait events and temporal parameters during free-living walking, one based on two shank-worn inertial sensors, and the other based on one waist-worn sensor. The algorithms were applied to gait data of ten healthy subjects walking both indoor and outdoor, and completing protocols that entailed both straight supervised and free walking in an urban environment. The values obtained from the inertial sensors were compared to pressure insoles data. The shank-based method showed very accurate initial contact, stride time and step time estimation (

Item Type: Article
Uncontrolled Keywords: Algorithm, Free walking, Gait events, Inertial sensor, Temporal parameters
Subjects: B100 Anatomy, Physiology and Pathology
C600 Sports Science
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Rachel Branson
Date Deposited: 28 Jul 2020 09:47
Last Modified: 31 Jul 2021 12:01

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