Recently I have been noticing some issues with me when I am squatting. First off my big issue at the moment is my back not being able to support the weight. For example when I try doing 385 lbs and after I get down to parallel and start to head back up my legs can move it up pretty easily but my back cannot and will usually bend forward resulting in pretty ugly form. How should I solve this problem? Should I focus on strengthening my abs and lower back more? What would be some good exercises for doing that?
Then my next issue which I am having some trouble with as well is my squat form. I know when you squat your weight should be on your heels and not your toes, but for some reason I cannot make it do that. I have heard before you attempt to squat you should raise your toes of the ground and this will result in your weight being forced back on your heels. Is this true? What else besides that can I use to fix that problem.
Anyway thanks for reading and sorry if my post is rather long. I would just like like to get a few of these issues taken care of.