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Lower Limb Biomechanics
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English
Abstract
Normal motion of the lower limbs is discussed in this paper. The biomechanics of human gait has been studied experimentally using an instrumented walkway and analytically by means of mathematical models. Experimental methods for measuring ground reaction forces and limb kinematics are discussed. If limb kinematics are known, they can be used to compute the resultant joint forces and moments, using equations of motion which are algebraic in form. To obtain limb kinematics from the differential equations of motion, the problem is generally redundant, the degree of redundancy being equal to the number of unknown joint moments. The computation of muscle, ligament and bone contact forces from known resultant loads is also a redundant problem because there are more unknowns than there are available equations. For these there is no general consensus regarding the best objective function to be minimized. Models which automatically generate human gait have also been developed, They may have wide applications in sports science and ergonomics.
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Citation
King, A. and Nakhla, S., "Lower Limb Biomechanics," SAE Technical Paper 861924, 1986, https://doi.org/10.4271/861924.Also In
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