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  1. #18
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    Hey thejym,

    Thanks for the great video. Is it possible to create a video running backward, see if it matches your forehand pronation technique?

  2. #19
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  3. #20
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    LOL! I love the reverse video of that shot. It looks like some funky dance move with the way he moves his hips with his arm =p.

    Awesome video of the backhand and an excellent complement to the video you did about forehand pronation technique. Thank you!

  4. #21
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    kenzo, so cool! Just as all the animations you've made. This brings up another question, should we pronate in preparation phase, similar to Tony Gunawan supination in Kwun's video? I would think yes, but I know there will be ppl saying be relax and no pronation.

  5. #22
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    The way power shots work in badminton or any other sport really, is through storing of elastic energy through eccentric contractions. So yes, you pronate but it's an eccentric pronation generated by the transfer of power from your backswing, just like you supinate eccentrically in a forehand. Relaxation tends to refer only to allowing your forearm to eccentrically contract.

  6. #23
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    I believe thejym tells you at which point you should be pronating in the video...?

  7. #24
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    Except the way he says it suggests that you should pronate concentrically, which is wrong

  8. #25
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    how can you change pronation from concen. to eccen??

    Is it to do with bending at the elbow?
    Last edited by amleto; 05-21-2011 at 08:41 AM.

  9. #26
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    Concentric contractions are when you apply force directly using your muscles, an eccentric contraction is when your muscles stretch due to a force being applied from an external source (external meaning outside of the joint itself) like in a backswing. Once your forearm muscles reach peak load (only takes a fraction of a second), then you supinate concentrically to hit the shot.

  10. #27
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    Quote Originally Posted by kenzo View Post
    Wat. No, depends on how you hit it. Pure supination yes, adding wrist extension no. Also you don't always need time to hit a backhand smash, the most effective place to use it is on interception on a low lift. Although this thread isn't about whether the shot is appropriate or not, it's obvious that backhand smashes mostly aren't appropriate.
    what do you mean by pure supination ? do you mean you dont pronate beforehand ? supination is essential to hit a backhand . Yes backhand smash (kill) interception is appropiate to exceute a low lift (more appropiate in MD) , but it has to be hit perfectly , otherwise you be on the backfoot. panhandle grip is the most appropiate grip to use when the shuttle is behind you as less wist extension would be required, but if you arr hitting a drop than there is not much difference in which grip you would choose

  11. #28
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    No no. I mean using a normal backhand technique with a bevel grip without wrist extension vs using it with. You can't hit it cleanly with a normal backhand technique using a bevel grip but if you add wrist extension after you supinate, then you can hit it cleanly when it's behind you. I am pretty sure most players prefer this method since you have more control vs panhandle with your thumb on the side. Either that or I'm just weird.

  12. #29
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    but what is the different action to make pronatin eccentric or concentric?
    Last edited by amleto; 05-21-2011 at 09:44 AM.

  13. #30
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  14. #31
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    Thanks man for the vedios!!!! I was thinking for months ...why is my backhand skill are not accurate...now only I know that I need to master my grip....really...really..really...thx for this vedio

  15. #32
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    ive already looked at the wiki page. I dont understand how pronation can be eccentric

  16. #33
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    Because there isn't just 1 muscle controlling the forearm, muscles work in antagonistic pairs. Try this: pronate your arm fully by yourself, then use your other hand to pronate it more, you will find you can turn it more and that your muscles are exerting a force. This is an eccentric pronation of the forearm.

  17. #34
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    so in backhand shot, how can any pronation be eccentric?

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