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• W788596951 abstract "The aim of this project was to investigate the mechanics of the sprint start through theuse of computer simulation. Experimental data was collected on one male athlete inaccordance with a procedure agreed by Loughborough University Ethical AdvisoryCommittee. The data provided subject specific data for the creation of a four andfourteen segment, angle and torque driven models of the sprint start. The modelssimulated the start from the moment of onset of force production until takeoff fromthe starting block. The four segment model comprised a head and trunk, thigh, shankand foot whilst the fourteen segment model also included a lower spine and pelvis,upper arms, forearms and hands, as well as the other leg including two segment feet.Subject specific torque data was combined with EMG data to provide input to thetorque modelsResults from the four segment angle driven model demonstrated that the participantwill benefit from using smaller joint angles than usual in the set position as thisresulted in increased velocity on takeoff with minimal increase in movement time.The model also showed large joint torques during such starts and so suggested thatthis is likely to limit start performance. The four segment torque driven model alsorevealed that optimal joint angles exist for the hip and knee but such a result was notclear for the ankle. For this model the optimum angle at the hip was 73 (the smallesttested) and 108 at the knee which was the athlete’s usual angle. Increasing theathlete’s strength parameters resulted in a small increase in horizontal velocity ontakeoff for some simulations and all simulations had enhanced acceleration.Increasing initial muscle activations didn’t increase horizontal takeoff velocity but didalso increase horizontal acceleration. The fourteen segment angle driven model wasused to optimise spring parameters for input into a torque driven model. The fourteensegment torque driven model simulated movements and forces realistically but anadequate match was not found to the sprint start performance of the participant due tolong simulation times and lack of computing power." @default.
• W788596951 created "2016-06-24" @default.
• W788596951 creator A5028799902 @default.
• W788596951 date "2011-01-01" @default.
• W788596951 modified "2023-09-28" @default.
• W788596951 title "Computer simulation of the sprint start" @default.
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