A single gyroscope method for spatial gait analysis

Author

Doheny, Emer P. ; Foran, Timothy G. ; Greene, Barry R.

Author_Institution

Intel´´s Digital Health Group, TRIL Centre, Leixlip, Ireland

fYear

2010

fDate

Aug. 31 2010-Sept. 4 2010

Firstpage

1300

Lastpage

1303

Abstract

Inertial sensors have become increasingly popular in gait analysis, due to their highly portable, low cost, and potentially wireless nature. However, accurate spatial gait analysis using few sensors remains a challenge. A gyroscope-based algorithm for spatial gait analysis is presented. This novel algorithm (SGA) uses data from a single gyroscope attached to each shank. The performance of the SGA was compared to that of an electronic walkway, GAITRite^®. The two systems compared favorably, with a mean error in stride length of 0.09 ± 0.07 m, and a mean error in stride velocity of 0.11 ± 0.10 m/s. The error between the SGA and GAITRite was also similar to that reported by previous inertial sensor based algorithms. The relationship between stride length and stride velocity, as well as that of subject height and stride length was also examined. This new method provides an inexpensive, portable system for spatial or spatio-temporal gait analysis, which has potential for use in any location.

Keywords

biomedical equipment; biomedical measurement; gait analysis; gyroscopes; electronic walkway; gyroscope-based algorithm; portable system; single gyroscope method; spatial gait analysis; spatio-temporal gait analysis; stride length; stride velocity; Accelerometers; Algorithm design and analysis; Biomedical measurements; Gyroscopes; Leg; Legged locomotion; Sensors; Acceleration; Algorithms; Computer Simulation; Female; Gait; Humans; Locomotion; Male; Models, Biological; Monitoring, Ambulatory; Reproducibility of Results; Sensitivity and Specificity;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Conference_Location

Buenos Aires

ISSN

1557-170X

Print_ISBN

978-1-4244-4123-5

Type

conf

DOI

10.1109/IEMBS.2010.5626397

Filename

5626397