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Review of the Biomechanics of a Ski Jump - Research Paper Example

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Name: Instructor: Course: Date: Review of the biomechanics of a ski jump Introduction Ski jumping is a sport that human quest for the desire to fly from the top of a mountain or slope. This sport started in the 1840s with a 30 m steep slope. This is a delicate sport in which a jump is completed for approximately 10 seconds…
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Download file to see previous pages Ski jumping puts a lot of pressure on the athlete’s ability to control the moment and pressure. Most of the ski jumpers are extremely underweight .The ski jumping movement can be divided in six phases. This includes the in run, take –off, early flight, stable flight, landing preparation and landing phase. Each of these phases has a specific function that contributes enhancing performance through maximizing both the length of the jump and the technical quality (Tani 56). Biochemical research in ski jumping is extensively covers three areas. This includes the field studies on hill jumps and mountains, computer simulations of the flight phase and studies of simulation jumps. The two objectives of field studies of hill jumps involve the description of motion and purpose of the parameters that relate to performance. The computation of flight phase used is kinematic, kinetic and electromyographic methods. The simulation jumps that are employed in technique specific training are used for performance diagnostics. There are different conditions between the simulation jumps and hill jumps performance in ski jumping can not only be determined by the motor abilities but by a major extent of aerodynamic features of the equipment by a low body weight. This paper seeks to critically analyze the biomechanics of ski jumping. ...
There is limited information between the friction that exists between the snow and skis. The reduction of aerodynamic drag in the in- run phase is primarily as a result of the athlete’s posture and the design of the dress code (Shao-Ming 67). The curved form in the in-run prior to a ramp, the ski athlete has to counteract the centrifugal force that is acting on him. This phase is immediately followed by the athlete’s acceleration in the perpendicular dimension to ramp due to the muscular exerted. The take off phase requires an extension of the hip and knee joints that helps in producing a negative aerodynamics effects. A three dimensional camera using the tilting method is sued to analyze ski jumps. In most athletic events, the stretch shorten cycle is used. This phase examines two dimensional motions of the subjects, the jumper’s body and the experiment that is divided in four sections. This includes the upper body, thigh, lower leg and ski. The change of the knee angle is used to determine the existence of a stretch shorten cycle during the take of motion. Maximizing the flight is regarded as the general objective of all other phase in ski jumping. In the flight phase, jumpers can increase their distant jumped can increase their ski angle and leg angle while decrease the trunk. The jumpers should maintain approximately 40 degrees of the angle of ski and the direction of the trunk. This should be applied in the second part of the flight phase. This can be achieved by holding a flight position with a small leg and direction of flight angle. The technique that jumpers use during this phase is known as the V style. The total duration of the flight trajectory for ski jumping is very short (about 4 seconds). Therefore ...Download file to see next pagesRead More
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