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Gait and Foot Clearance Parameters Obtained Using Shoe-Worn Inertial Sensors in a Large-Population Sample of Older Adults
Laboratory of Movement Analysis and Measurement, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
Service of Geriatric Medicine and Geriatric Rehabilitation, University of Lausanne Medical Center, Epalinges 1066, Switzerland
Institute of Social and Preventive Medicine (IUMSP), University of Lausanne Medical Center, Lausanne 1010, Switzerland
* Authors to whom correspondence should be addressed.
Received: 29 November 2013; in revised form: 17 December 2013 / Accepted: 18 December 2013 / Published: 27 December 2013
Abstract: In order to distinguish dysfunctional gait, clinicians require a measure of reference gait parameters for each population. This study provided normative values for widely used parameters in more than 1,400 able-bodied adults over the age of 65. We also measured the foot clearance parameters (i.e., height of the foot above ground during swing phase) that are crucial to understand the complex relationship between gait and falls as well as obstacle negotiation strategies. We used a shoe-worn inertial sensor on each foot and previously validated algorithms to extract the gait parameters during 20 m walking trials in a corridor at a self-selected pace. We investigated the difference of the gait parameters between male and female participants by considering the effect of age and height factors. Besides; we examined the inter-relation of the clearance parameters with the gait speed. The sample size and breadth of gait parameters provided in this study offer a unique reference resource for the researchers.
Keywords: gait; elderly; foot clearance; ambulatory system; sensor fusion; reference data
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Dadashi, F.; Mariani, B.; Rochat, S.; Büla, C.J.; Santos-Eggimann, B.; Aminian, K. Gait and Foot Clearance Parameters Obtained Using Shoe-Worn Inertial Sensors in a Large-Population Sample of Older Adults. Sensors 2014, 14, 443-457.
Dadashi F, Mariani B, Rochat S, Büla CJ, Santos-Eggimann B, Aminian K. Gait and Foot Clearance Parameters Obtained Using Shoe-Worn Inertial Sensors in a Large-Population Sample of Older Adults. Sensors. 2014; 14(1):443-457.
Dadashi, Farzin; Mariani, Benoit; Rochat, Stephane; Büla, Christophe J.; Santos-Eggimann, Brigitte; Aminian, Kamiar. 2014. "Gait and Foot Clearance Parameters Obtained Using Shoe-Worn Inertial Sensors in a Large-Population Sample of Older Adults." Sensors 14, no. 1: 443-457.