Simultaneous estimation of ground reaction force and knee contact force during walking and squatting
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Chronic occupational lower limb injuries such as osteoarthritis require an understanding of mechanical loading conditions in joints during occupational activities. We aimed to develop a human musculoskeletal model and to estimate knee contact force and ground reaction force (GRF) simultaneously during walking and squatting. GRF and joint kinematics were obtained from a subject with electronic total knee replacement during walking and squatting. Force reaction elements were embedded in the knee and foot of a full-body musculoskeletal model. The joint kinematics and ground vertical force were applied to the musculoskeletal model to estimate ground shear force and knee contact force using an inverse dynamics-based optimization. Ground shear force and knee contact force could be estimated simultaneously with root mean square (RMS) error less than 1.6% body weight (BW) and 35% BW, respectively. Simultaneous estimations could be accurately conducted but the RMS error for the knee contact force increased by approximately 10% BW.
KeywordsMusculoskeletal simulation Knee contact force Ground reaction force
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- 10.Chen, Z., Wang, L., Liu, Y., He, J., Lian, Q., Li, D., and Jin, Z., “Effect of Component Mal-Rotation on Knee Loading in Total Knee Arthroplasty Using Multi-Body Dynamics Modeling Under a Simulated Walking Gait,” Journal of Orthopaedic Research, Vol. 33, No. 9, pp. 1287–1296, 2015.CrossRefGoogle Scholar
- 14.Lee, S., Kim, H., Jeong, H., and Kim, J. “Analysis of Musculoskeletal System of Human during Lifting Task with Arm Using Electromyography,” Int. J. Precis. Eng. Manuf., Vol. 16, No. 2, pp. 393–398, 2015.Google Scholar
- 15.Purevsuren, T., Kim, K., Nha, K. W., and Kim, Y. H., “Evaluation of Compressive and Shear Joint Forces on Medial and Lateral Compartments in Knee Joint during Walking Before and After Medial Open-Wedge High Tibial Osteotomy,” Int. J. Precis. Eng. Manuf., Vol. 17, No. 10, pp. 1365–1370, 2016.CrossRefGoogle Scholar