DISTANS. TEKCHNIQUE IFLUENCE ON JAVELIN FLICHT There are factors that influence flight are directly a result of throwing
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1 TEKCHNIQUE IFLUENCE ON JAVELIN FLICHT There are factors that influence flight are directly a result of throwing DISTANS RELEASE ANGLE ATTACK ANGLE SEIDS ANGLE RELEASE SPEED BRAKING FORCES (INPACK) APPROACH SPEED PITCHING AERODYNAMIC neuromuscular and biomechanical consideration (Komi, 1992). The stretch-shortening cycle occurs when elastic loading, through an eccentric muscular contraction, is immediately followed by an explosive concentric muscular contraction. The tension developed in the musculo-tendinous junction by the eccentric loading of the muscle causes it to act in similar manner to a rubber band. When this stored energy is released it helps to increase the strength of the following concentric contraction. These neuromuscular considerations have huge ramifications for the preparation of javelin throwers. keihään lähtö 29 m/s vauhti 7 m/s SOFT-STEP &BLOK lähtönopeus m/s TIME OF PULL m/s While it may take a bit more time to master, once learned, the soft-step will allow for constant improvement in performance. As the thrower becomes more comfortable with the technique and can increase his speed, he ll be able to throw farther.
2 RELESE SPEED MOST IMPORTAT MAIN POINTS FOR JAVELIN THROW ANGLE OF RELEASE 70m 90m RELESE ANGLE DEGREES BEST RELESE ANGLE FOR JAVELIN WAHAT IT S THE PEST FOR YOU???? BEST RELESE ANGLE SPEED FOR JAVELIN THROWER
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4 Biomechanical Aspects of the men Javelin Throw SUL Javelin head coach Finland Kari Ihalainen Time and length of last step is calculated: time begins run when right legs toe touches the track and stops when left legs heel touches the track. The length is: distance between right and left leg. Time of pull and length is cal. when front legs heel touches the track and it ends when javelin releases from grip. The distance from track to releasing point is releasing height lenght of pull c/m lenght of last step c/m time of pull sec time of last step m/s releasing height cm
5 Biomechanical Aspects of the men Javelin Throw NOTE!! Block Releasing ANGLES OVER 180 DEGREE MEANS THAT FRONT LEG IS OVER EXTENDED knee angle and elbow angle is measured when front leg hits the track knee angle and elbow angle is measured when these are in minimum during pull knee angle and elbow angle is measured when releasing javelin from grip. knee angle when front leg hits track knee angle minimum during pull knee angle when releasing elbow angle when begin pull elbow angle minimum during pull elbow angle when releasing
6 Biomechanical Aspects of the men Javelin Throw SUMMARY Main differences between Zelesny and others Jan Zelesny use body rotation more then others in pulling moment hip angle when front leg hits track (degree) hip angle when releasing shoulder angle when front leg hits track shoulder angle when releasing body-front leg angle when front leg hits the track body-front leg angle when releasing releasing point from front leg toe cm distance between right and left leg (vertical) c/m moving to right during pull cm releasing point from front leg c/m change of center of gravity c. g. must raise during the pull speed must increase when releasing the speed of c. g. speed when front leg touches track body speed decreasing in releasing moment speed of c. g. when the front leg hits track m/s speed of c. g. in releasing moment m/s raise of c.g. from lowest point to releasing point Block releasing
7 Biomechanical Aspects of the men Javelin Throw highest speed of shoulder m/s highest speed of elbow m/s highest speed of wrist m/s highest speed of hand m/s Block Releasing cross point of hip and shoulder during pull (time) highest speed of shoulder during pull sec highest speed of elbow during pull sec highest speed of wrist during pull sec highest speed of hand during pull sec pulling time from begin to end sec ZELESNY BACKLEY picture from behind powers that are directed to Zelesny s body and how these change during the pull picture from abowe upper body rotation will help thrower if he can pull javelin straight front
8 GROSSOVER KEEPING THE SENTER OF GRAVITY MOVING LEVEL AND FORWARD IS KEY LONG THROWS, AND THE SOFT-STEP ACTION IS THE KEY TO THIS HAPPENIG THE MOST CRITIGAL ASPECT OF THROWING IDEALY,THIS IS DON WITHOUT LOSING ANY SPEED THERE IS NOT A WILLFUL DRIVE OR PUSH OF THE RIGHT KNEE INSTEAD THE ACTION IS AN ACTIVE TURNING INWARD OR DROPPING ACTION GROSSOVER STEP ARE THE KEY RHYTHM AND RELAXATION GROSSOVER STEP LENGTH IT S THE SAME WHAT IS YOUR JAVELIN LENGT ( MEN 2.6m-3m WUOMEN 2.4m-2.6m)
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10 RELEASE SPEED RELEASE SPEED
11 DISTANS m RELEASE SPEED RELEASE ANGLE
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