A smart, physically based morphing of space is used to accelerate the simulation process using model reduction techniques. To circumvent this problem, proper generalized decomposition (PGD) model reduction techniques are used to simulate the knee synovial joint. Because of the degenerated shape in the thickness direction, classical methods require a large number of degrees of freedom to correctly reproduce the knee behavior. This joint model is mainly made of cartilage, a meniscus (both biphasic low permeability materials), and viscous synovial fluid. Moreover, we tackle the modeling and simulation of a tibiofemoral knee joint under impact using optimized inverse dynamics and the Brinkman model in the biphasic synovial joint domain. In this work, we study the effects of the Lebanese folkloric dance Dabke jumping and compare it to vertical jumping. Multiple works aim to model the knee joint behavior in the literature either experimentally or through finite elements simulations. Considering their inefficient healing and the lack of effective replacements, knee joints became a hot topic for biomechanics research. Human joints in general and the human knees particularly are subjected to impacts and wear on a daily basis, specifically during jumping.
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