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Sensors 2010, 10(6), 5683-5702; doi:10.3390/s100605683

Gait Event Detection on Level Ground and Incline Walking Using a Rate Gyroscope

1,2,* , 1
1 Centre for Biomedical Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK 2 School of Engineering, Universidad Nacional de Entre Ríos, Argentina
* Author to whom correspondence should be addressed.
Received: 23 March 2010 / Revised: 24 May 2010 / Accepted: 25 May 2010 / Published: 4 June 2010
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in the UK)
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Gyroscopes have been proposed as sensors for ambulatory gait analysis and functional electrical stimulation systems. Accurate determination of the Initial Contact of the foot with the floor (IC) and the final contact or Foot Off (FO) on different terrains is important. This paper describes the evaluation of a gyroscope placed on the shank for determination of IC and FO in subjects walking outdoors on level ground, and up and down an incline. Performance was compared with a reference pressure measurement system. The mean difference between the gyroscope and the reference was less than –25 ms for IC and less than 75 ms for FO for all terrains. Detection success was over 98%. These results provide preliminary evidence supporting the use of the gyroscope for gait event detection on inclines as well as level walking.
Keywords: gait event detection; Initial Contact; Foot Off; gyroscope gait event detection; Initial Contact; Foot Off; gyroscope
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Catalfamo, P.; Ghoussayni, S.; Ewins, D. Gait Event Detection on Level Ground and Incline Walking Using a Rate Gyroscope. Sensors 2010, 10, 5683-5702.

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