Making use of local anti-wear principle, the serious abrasion's outside was welded cavum, then in the cavum casting wear resisting material 28Cr cast iron, availably improving the wearing quality of knee bend.
By the principles of kinematics and mechanics,this paper discusses the function of the kill of sprint with kneebend so as to offer theoretical help to the further improvement of the teaching and training of sprint skill.
The tendon from the lateral side of femur tunnel was inserted into tibial tunnel followed by a kneebend in full extension and flection for 20 times so that the tendon knots and bone lock bolts were absolutely inserted into the bottleneck like femur tunnel.
Methods Based on gait database of the human hip in vivo collected by Biomechanics Lab of Berlin University and Hertzian elasticity contact theory, a realistic stress level analysis for dynamic cases at hip joint(including: walking slowly, walking normal, walking fast, knee bend, going up stairs, going down stairs, standing up and sitting down activities) is presented.
The investigation focused on the techniques utilized by weightlifters to control lower extremity displacement during the initial phase of the double knee bend execution of the "clean" in Olympic weightlifting.