Biomechanical basis of choosing the rational mass and its distribution throughout the lower limb prosthesis segments.

摘要: A solution for finding a rational distribution of mass in lower limb prostheses has been considered based on the formal premise favoring identification movements prosthetic and an intact leg. For purpose simplicity, analysis carried out only swing phase, data about properties moving segments being determined without integrating differential equations motion. At formation motion, assumption that body are absolutely rigid have constant moments inertia locations center was taken into consideration. Based independent proportions formed combinations coefficients system three formulated solved relation to values sought: static radius prosthesis complex link "shin + foot footwear." From six unknowns included equations, chosen as mean empirically. The obtained results following conclusions: parameters footwear" depend amputation level patient's mass. These data, reported appropriate tables, may be used prosthetics practice. Recommendations also presented with regard prosthesic relative age person method balancing aimed at achievement masses. allowed us make recommendations artificial It concluded reasonable desire reduce is not end itself, but means by balancing. proved fitting decreased energy costs overloads normalized gait.