Abstract
The evaluation of foot deformities in the gait laboratory is still a challenge for many rehabilitation centers. Several models have been proposed in measuring accentuated foot deformities, however there are some limiting factors for the markers placement, the number of markers used, as well as the complexity of their placement which limit the data collection. The aim of this study is to develop a new foot model to measure the dynamic behavior of an equinus foot during gait. Using only four additional markers, our model is built over the original VICON Plug-In-Gait marker protocol, not compromising the time spend to set up the subject for the conventional gait analysis. The outcomes of the measurements are the angle displacements of two regions of both feet: hindfoot and forefoot. It is notable that the values of the angles of the hindfoot and forefoot planes are not zero when the individual is in neutral stance. Therefore compensation is needed using calibration data of unimpaired subjects. The model proposed was tested in an unimpaired subject as well in a patient scheduled for gait exam with right foot equinus. Our results show promising information about the equinus deformity during gait, but further research is needed to indicate the precision of the tool, especially in subjects with stair type equinus.
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References
Leardini, A., Sawacha, Z., Paolini, G., Ingrosso, S., Nativo, R., Benedetti, M.G.: A new anatomically based protocol for gait analysis in children. Gait Posture 26(4), 560–571 (2007)
Yalamanchili, S., Abboud, R., Wang, W.: A model to calculate the joint movements and forces in the foot. In: Proceeding of the 9th ICEMI 2009 International Conference on Electronic Measurement and Instruments, pp. 4532–4536 (2009)
VICON Oxford foot model
(VICON), Plug-in Gait (Product Guide) (2010)
Carson, M.C., Harrington, M.E., Thompson, N., O’connor, J.J., Theologis, T.N.: Kinematic analysis of a multi-segment foot model for research and clinical applications: a repeatability analysis. J. Biomech. 34(10), 1299–1307 (2001)
Resende, R.A., Kirkwood, R.N., de Figueiredo, E.M.: Cinemática da marcha de adultos jovens: dados normativos iniciais. Ter Man 8(39), 370–376 (2010)
Scott, S.H., Winter, D.A.: Talocrural and talocalcaneal joint kinematics and kinetics during the stance phase of walking. J. Biomech. 24(8), 743–752 (1991)
Orendurff, M.S., Aiona, M.D., Dorociak, R.D., Pierce, R.A.: Length and force of the gastrocnemius and soleus during gait following tendo Achilles lengthenings in children with equinus. Gait Posture 15(2), 130–135 (2002)
McGraw-Hill, S.P.P.: McGraw-Hill Dictionary of Scientific and Technical Terms (2002)
Winter, D.A.: Biomechanics and Motor Control of Human Movement (2009)
Barre, A., Armand, S.: Biomechanical ToolKit: open-source framework to visualize and process biomechanical data. Comput. Methods Progr. Biomed. 114(1), 80–87 (2014)
Robertson, G., Caldwell, G., Hamill, J., Kamen, G., Whittlesey, S.: Research Methods in Biomechanics. Human Kinetics (2013)
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Gonçalves, C. et al. (2019). Development of New Foot Model for Dynamic Equinus Foot Behavior During Gait. In: Costa-Felix, R., Machado, J., Alvarenga, A. (eds) XXVI Brazilian Congress on Biomedical Engineering. IFMBE Proceedings, vol 70/1. Springer, Singapore. https://doi.org/10.1007/978-981-13-2119-1_29
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DOI: https://doi.org/10.1007/978-981-13-2119-1_29
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