
doi: 10.1111/sms.12300
pmid: 25123506
The influence of important parameters on the flight trajectory for jumps in downhillWorldCup races was investigated. To quantify the impact injury risk at landing, the parameter equivalent landing height (ELH) was introduced, which considered a variable slope inclination during the landing movement. Altogether, 145 runs at four different jumps inWorldCup races and trainings were recorded and analyzed. A simulation model was developed to predict the flight phase of the skier. Drag and lift areas were selected by parameter identification to fit the simulation trajectory to the two‐dimensional data from the video analysis. The maximum values of theELHwhich can be absorbed with muscle force was taken from the study ofMinetti et al. for elite female and male ski racers. A sensitivity analysis based on the four jumps showed thatELHis mainly influenced by takeoff angle, takeoff speed, and the steepness of the landing surface. With the help of the developed simulation software, it should be possible to predict theELHfor jumps in advance. In case of an excessiveELH, improvements can be made by changing the takeoff inclination or the approach speed.
Male, Movement, Video Recording, Risk Assessment, Biomechanical Phenomena, ALPINE SKIERS, Skiing, Athletic Injuries, AERODYNAMIC DRAG, Humans, INJURIES, Computer Simulation, Female, Stress, Mechanical, Safety, Muscle, Skeletal
Male, Movement, Video Recording, Risk Assessment, Biomechanical Phenomena, ALPINE SKIERS, Skiing, Athletic Injuries, AERODYNAMIC DRAG, Humans, INJURIES, Computer Simulation, Female, Stress, Mechanical, Safety, Muscle, Skeletal
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