From the biomechanics point of view, ski jumping is a complex motion. An excel-lent tuning of the individual technique of the athlete and the equipment is necessary to achieve good placements in international competitions. For that reason Computer Simulation gains a growing importance. JUMPICUS is a highly detailed biomechanical multibody model for Simulation in ski jumping and offers different methods of biomechanical analysis. Firstly, real jumps can be analysed. The real motion is captured by digital cameras. A video analysis provides 3D-coordinates of significant points on the athlete. By the method of inverse kinematics JUMPICUS evaluates the time history of joint angles as well as the time history of global position and orientation of the athlete. Based on these results, several ski jumping specific parameters (e. g. take-off velocity, angular momentum, angles between body Segments and the flight trajectory) can be evaluated and compared with parameters from other jumps or with a given technical ideal. Secondly, using the forward dynamics Simulation effects resulting from changing the athletes motion as well as the influence of equipment parameters can be analysed. JUMPICUS has been already applied to study the effect of modification of the take-off motion on the vertical take-off velocity and the angular momentum at the lip of take-off.
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