Abstract
Estimation of contact forces between lower limb and orthosis during gait is useful to prevent skin issues in subjects wearing this type of assistive devices. While inverse-dynamics based gait analysis of multibody models is difficult to apply due to the limited accuracy of motion capture systems, a forward-dynamics based analysis in which leg and orthosis are considered as independent entities is shown to provide acceptable results. Contact model parameters are calibrated through comparison of measured and calculated bending torque at the orthosis location where a load cell is installed, and the attained correlation allows to validate the model.
This work was funded by the Spanish MINECO under project DPI2015-65959-C3-1-R, cofinanced by the EU through the EFRD program, and by the Galician Government under grant ED431B2016/031.
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Font-Llagunes, J.M., Clos, D., Lugris, U., Alonso, F.J., Cuadrado, J.: Design and experimental evaluation of a low-cost robotic orthosis for gait assistance in subjects with spinal cord injury. In: Gonzalez Vargas, J., et al. (eds.) Wearable Robotics: Challenges and Trends, pp. 281–286. Springer (2016)
Lugris, U., Carlin, J., Luaces, A., Cuadrado, J.: Gait analysis system for spinal cord injured subjects assisted by active orthoses and crutches. J. Multi-body Dyn. 227, 363–374 (2013)
Mouzo, F., Lugris, U., Pamies-Vila, R., Cuadrado, J.: Skeletal-level control-based forward dynamic analysis of acquired healthy and assisted gait motion. Multibody Syst. Dyn. 44(1), 1–29 (2018)
Mouzo, F., Lugris, U., Cuadrado, J., Font-Llagunes, J.M., Alonso, F.J.: Evaluation of motion/force transmission between passive/active orthosis and subject through forward dynamic analysis. In: Ibañez, J., et al. (eds.) Converging Clinical and Engineering Research on Neurorehabilitation II, pp. 815–819. Springer (2016)
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Mouzo, F., Lugris, U., Cuadrado, J., Font-Llagunes, J.M., Alonso, F.J. (2019). Calibration and Validation of a Skeletal Multibody Model for Leg-Orthosis Contact Force Estimation. In: Carrozza, M., Micera, S., Pons, J. (eds) Wearable Robotics: Challenges and Trends. WeRob 2018. Biosystems & Biorobotics, vol 22. Springer, Cham. https://doi.org/10.1007/978-3-030-01887-0_49
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DOI: https://doi.org/10.1007/978-3-030-01887-0_49
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