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Wednesday, January 12, 2011

Sprint Starts: Hand Postioning

Take a look at the image below:



In this picture you will see the athletes in great postion.  Explosive athlete's are coiled into the starting blocks and when they rise into the set position, the weight will be shifted onto their front foot and hand.  Usain Bolt shows us this coiled set position.



Bolt and these other world class sprinters are at the forefront of the track and field sport.  They have highly devloped programs and their coaches are world renowned.  Despite the fact that these people are the best at what they do, I believe that a consideration could alter the game as we know it.

If you put yourself in the Bolt set postion properly, you should only be able to hold it for a mere 2 seconds at best.  Because so much of the weight is shifted over the hands, the balance of this position is easily lost/comprimised.  To be on the edge of out of controlling the position is correct.  As you can see, the shoulders are over the hands and the arms, even with a slight bend, lean forward.  The athlete relies on the friction of the fingers to hold themselves coiled.  The weight of the fingers is held over three fingers on each hand (thumb, index, and middle).  The hands are to remain tugging (frictionally) at the ground until the start at which time the athlete releases the hand brakes, using the stored elasticism of the stretch reflex to explode out of the blocks.  It would appear that the athlete that can coil with more tension will be more successful exploding out of the blocks.



After spending some time fooling with the hand grip, I noticed that when I get the hand in the set position, where the hand makes the L shape on the ground, my hand can sometimes spasm as I am bordering a loss of balance.  Not only is the loss of balance a detriment, but not being able to activate a significant forward lean would result in a slower time in the start.  Trying several other hand starts, I came to one that felt comfortable and helped me establish a balanced forward lean with the arms.



Since the tripod is the most stable platform on earth, I decided to create a tripod with my hands. The weight of the body is shifted onto the knuckles of the index and middle fingers.  By being on the knuckles we remove the weak distal end of the finger.  Compare fingertip pushups to bare knuckle pushups to notice the difference.  By loading the weight of the compressed spring in line with the knuckles (facing forward) we are able to compress the spring to a greater degree.  Also, I found that there is virtually no difference in the removal of the hand from the ground, thus making it superior to the standard hand variation.  This move would be similar to placing the hands past starting line, which in theory would allow the athlete to travel faster.  I will be testing this starting variation in the future an keep you posted as to the success I find with it.

1 comment:

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