| Summary: | 碩士 === 國立成功大學 === 醫學工程學系 === 84 === Recently, scholars have used biomechanical model to predict and
analyze the dynamics of human motion. Some of them focus on
gait analyses that intend to give people better understanding
of human walking pattern and the induced joint forces. In order
to build a biomechanical model that can predict the gait motion
of below-knee amputees, this paper uses seven links to build a
three dimensional dynamic model to simulate the swing phase of
human gait. The dynamic equations are derived based on Newton-
Euler method. Once the motion parameters such as displacement,
velocity、and acceleration are measured experimentally,the
joint forces of normal subject could be obtained by inverse-
dynamic method. These joint forces could then be used as
referenced parameters to predict the motion trajectory of below-
knee amputees by direct-dynamic method, where some of the
parameters, such as the body mass and moment of inertia, are
changed to that of amputees, also some constraints are added
to limit the mobility of the model to emulate an artificial
limb .
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