[quote]alexus wrote:
3rd figure, you can see the bump and extension. This is why I don’t like calling it a second pull, you are not pulling the weight up, rather “falling” under the bar into your catch position. Keep playing with it. Another good tip I got is not to keep all the weight on your heels, rather use mid-foot.
There is a discussion on page 11 of the Pendlay forum (the long thread) of the catapult technique. I need to read it more carefully and have a think… But I think (as part of that?) shrugging was frowned upon. There is this tricky thing of needing to get the bar high - and needing to get yourself low. I read something somewhere about there being two kinds of lifters - those that err on spending too long getting the bar up high (so don’t get under quick enough) and those that dive under the bar too soon (and don’t get the bar high enough first). All my powercleaning… Focusing on getting the bar up high… I’m probably not developing the ideal technique for being able to get myself under it quickly. I have been experimenting with my weight more in the mid-foot and I think that is really helping ![]()
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I’ve read that discussion too. Its the first discussion I’ve seen on the catapult technique that made any sense to me. What is seems to all come down to is a difference in emphasis.
The old school triple extension method treats the pull like a jump, with emphasis on knee extension, a shrug at the top, and raising up on toes, pulling the bar as high as possible before pulling under. The catapult school says this leads to pulling under the bar late, after it has reached its maximum velocity, giving less time to get under the bar before it starts descending. Some also erroneously claim that it increases the distance required to pull under the bar.
The catapult method emphasises hip extension. Full knee extension and any ankle plantarflexion, if they happen, are coincidental. The best I can tell, the triple extension school says this is a waste of resources. I don’t know how many times in the past I was told to “Finish the pull!”
Despite an initial objection to the term “catapult”, I tend to side with the catapult school. When the bar reaches its maximum velocity is the time to quit pushing on the platform and start pulling yourself under the bar. The problem is knowing when that maximum velocity occurs. My main problem with the catapult method has to do with some people’s description of the technique that claimed it was the actual bar-hip interaction that accelerated the bar upwards. Being to the side of the bar, your hips can only impart horizontal velocity to the bar, usually not a good thing.
As for the shrug, I don’t think it really matters. It’s darn near impossible to catch a snatch or clean without shrugging at some point, and whenever you do it, it has the effect of increasing (or lessening the decrease of) the bar’s velocity, and decreasing the lifter’s body’s velocity (or increasing the downwards velocity) , i.e. assisting in pulling the lifter under the bar.
It all boils down to: Bar height is not the critical factor, bar velocity is.