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Post by slinger on Oct 16, 2006 17:27:45 GMT 1
Slinger - sub maximal. i.e most people can run faster without a Javelin than they can with one. yeah funny but we are talking of javelin throwing and i mentioned "withdrawl", this is a javelin term, i know you've only been throwing for 2 seasons but i'm sure understood it was meant that you are holding a javelin.......unless you are doing something else?
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Post by kamikaze on Oct 16, 2006 17:28:02 GMT 1
Perhaps, but much of that (release speed) has to do with keeping the body fluid and relaxed, rather than simply runing fast.
No one has questioned my running speed with the javelin, but sometimes in my desire to hit the javelin I tense up.
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Post by kamikaze on Oct 16, 2006 17:30:22 GMT 1
Sorry Slinger, you've lost me........
I can run faster without a Javelin than I can with one.
Don't think I can put it more simply than that.
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Post by slinger on Oct 16, 2006 18:07:04 GMT 1
seriously though...... how fast are you talking of running prior to withdrawl? - sub maximal or maximal? the question was asked whilst you were holding a javelin.........as in "are you running your full speed with the javelin prior to withdrawl?" i should have just asked it simpler i guess........ you see, for you to accelerate in to the throw [which is a technical basic] you mustn't be full speed during the carry, this gives you the chance to accelerate through the X over phase and then into delivery. when i've described the carry phase before, it's always been so it's done at "almost full speed and accelerating before withdrawl"
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Post by slinger on Oct 16, 2006 19:16:37 GMT 1
Perhaps, but much of that (release speed) has to do with keeping the body fluid and relaxed, rather than simply runing fast. No one has questioned my running speed with the javelin, but sometimes in my desire to hit the javelin I tense up. it'S often that because people are so keen to throw the thing as hard as they can they tense up, i describe it as "trying to throw th javelin half way down the run up" try the thoughts of just running with acceleration and rhythm and almost forgetting you are holding a javelin........ ........the feeling of the throw should be a confident mood, with purpose, but of relaxation until the left foot contacts into the plant and then it should be like a "clap of thunder" a real sudden burst of emotion. being in a relaxed state during the approach will allow your muscles to work more efficiently and you'll be able to carry more speed into the plant and solid block, than if you were tense prior to plant.
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Post by kamikaze on Oct 17, 2006 8:15:42 GMT 1
Thanks Slinger, I agree.
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Post by wez on Oct 17, 2006 12:56:01 GMT 1
Kamikaze, I think you are applying the wrong Newton law. F=MA (Force=Mass * Acceleration) is the one relevant to runups, it even demonstrates how big heavy throwers can throw far without running so fast. Anyhow i think you've got the point now so nuff said.
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Post by kamikaze on Oct 17, 2006 13:30:21 GMT 1
No, I'm applying the correct law.
Force is the mathematical product of the mass of the javelin and the acceelration imported by the thrower's arm.
The part that you have overlooked is the time for which the mass (javelin) is accelerated becuase that will directly influence the release speed of the javelin (v)
The other determinant factors in distance will then be height of release, alpha (angle of attack) and theta (angle of release) taking wind conditions into account.
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Post by wez on Oct 17, 2006 13:52:29 GMT 1
What i mean by Force is the force avaliable to the athlete to transfer from the runup into the throwing movement.
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Post by lifebeginsat40 on Oct 17, 2006 14:02:00 GMT 1
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