by GenGau » Fri Jan 11, 2008 9:33 pm
You should keep your glutes tight at all times, but you need to squeeze them when you are pushing the weight up.
Just imagine you are trying to crack a walnut that is stuck in between your butt cheeks (this works for me)....that's how tight your glutes should be. It also helps me push with all the muscles I should be using, not just my legs.
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Go curl in someone else's squat rack!