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Hand position in the Jerk

 
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Weights_Admin
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Joined: 01 Jan 1970
Posts: 644
Location: N. Ireland or Arkansas

PostPosted: Sat Aug 04, 2007 3:43 pm    Post subject: Hand position in the Jerk Reply with quote

I thought this was an interesting quote as I have heard several people in Ireland give this reason for changing the hand grip between the clean phase and jerk phase.

From this site http://www.sportivnypress.com/English/frames.html

A Russian lifter (Yarkin 105 kg) injured his elbow while straining to hold a jerk. He suffered a serious “snatch” injury in the clean and jerk because he shifted his grasp to a wide hand – spacing after the clean. The lifter’s little fingers were at or past the snatch marking on the bar. Apparently, the idea is to decrease the lifting distance with the wide hand spacing. The overcoming force needed to lift the barbell remains the same; so, all you’ve done is shift the stress from one set of joints and muscles to another.

Unless the athlete has a problem with mobility in the shoulders or some other problem necessitating a wide - hand - spacing for the jerk, a wide – hand -spacing is at best a waste of effort and at worst an injury waiting to happen.


Last edited by Weights_Admin on Sat Aug 04, 2007 5:43 pm; edited 1 time in total
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Kevin Darcy
Kolecki's Understudy


Joined: 08 May 2007
Posts: 256
Location: galway

PostPosted: Sat Aug 04, 2007 5:04 pm    Post subject: Reply with quote

Im no physics expert and quite dehydtated after the sauna but I will attempt to refute this ststement.

Quote:
Apparently, the idea is to decrease the lifting distance with the wide hand spacing. The overcoming force needed to lift the barbell remains the same; so, all you’ve done is shift the stress from one set of joints and muscles to another.


Assuming that the leg drive is what provides the force to move the bar and that,
the distance the bar needs to be moved is the vertical distance between position (a) bar resting on lifters shoulder and position (b) arms lenght overheadafer recoverin from split.
The wider hand spacing will give you a greater angle between the humerous and clavicle in the overhead position,
thus decreasing the distance from position (a) to position (b).

It is correct to say that it takes less force to move a given weight a lesser distance.

We assume the depth of split remains constant.

The coaches here often teach this method for this purpose.
They tried to teach it to me but my shoulder flexability proved inadequate to hold the bar racked in a good position to apply maximum driving force with a wide grip.

Is this not the very reason we use a wide grip to snatch. It means that the bar is in a higher position at the end of the pull and that the bar doesnt need to be very high to lockout in final position.

I imagine the reason that the wide grip is not used for the clean and only for the jerk is because of difficulty taking the bar off the floor. As the grip widens and the angle becomes greater, the body is positioned lower to the ground in the bar separation from floor .This increases initial knee and hip flexion putting the body in a weaker position to exert force.
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Nathy O'Connell
77kg lifter


Joined: 14 Jan 2007
Posts: 24
Location: GWC, Galway Ireland

PostPosted: Fri Aug 10, 2007 11:04 pm    Post subject: Reply with quote

Good point kev. I have played a little with this in training only with light weight and found it much quicker to lock. But when it got heavier it didn't feel good on the wrists so I stopped it sharp'ish !
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Neil
69kg lifter


Joined: 06 Jan 2007
Posts: 57
Location: Bangor

PostPosted: Fri Aug 31, 2007 1:10 pm    Post subject: Reply with quote

if anyone looks at how my technique has changed over the last few years, this is one of the things i have incorporated.

I didn't do it so i would have to drive any less, nor that i feel my jerks were bad to begin with. Most of the time they are the strongest part of my lifting.

I changed to a slightly wider grip (and by slightly i mean half an inch on each hand) to prevent my arms unlocking in the recieve position in the jerk. It stopped me doing any double lockouts, or pressing out.

Just a thought, it seems to work for me, but those are the reasons why.
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