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Gait phase detection using foot acceleration for estimating ground reaction force in long distance gait rehabilitation
journal contribution
posted on 2015-05-21, 12:26 authored by Kazuya Kawamura, Yuya Morita, Jun Okamoto, Kohei Saito, Salvatore Sessa, Massimiliano ZeccaMassimiliano Zecca, Atsuo Takanishi, Shin-ichiro Takasugi, Masakatsu G. FujieIn gait rehabilitation, achieving a gait analysis method using a simple system during long-distance walking is important. This method is required to measure all gait parameters in a single measurement. In addition, it is required that the measurement system is not spatially constrained. Therefore, we have been developing a gait tracking system with acceleration sensors for long-distance gait rehabilitation. In this paper, we describe a gait phase detection method using foot acceleration data for estimating ground reaction force during long-distance gait rehabilitation. To develop this method, we focused on the jerk of each foot in vertical axis direction. Using two accelerometers mounted on the left and right feet, we carried out three experiments. First, we measured the jerk of each foot during a free gait to verify the relation with the walking speed. Second, we measured the jerk of each foot during walking faster than normal for each subject. We then compared these results with the results of first experiments. Finally, we measured the jerk of each foot during left-right asymmetrical walking. The results confirmed that gait phase could be detected using the jerk of each leg, calculated from acceleration data in vertical axis direction. In particular, the timing of Heel-contact / Toe-off could be obtained with an average error of 0.03 s. And as a preliminary study, we estimated the ground reaction force using the one of the results.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Journal of Robotics and MechatronicsVolume
24Issue
5Pages
828 - 837Citation
KAWAMURA, K. ... et al, 2012. Gait phase detection using foot acceleration for estimating ground reaction force in long distance gait rehabilitation. Journal of Robotics and Mechatronics, 24 (5), pp. 828 - 837.Publisher
© Fuji Technology PressVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2012Notes
This article is closed access.ISSN
0915-3942eISSN
1883-8049Publisher version
Language
- en