Shoes and Heavy Weight

The video above describes pretty common occurrence when squatting heavy weights.  The same applies to dead lifts, power cleans, snatches etc.  Running sneakers simply do not provide a optimal base and can hinder linear progression on the core lifts not to mention alter movement patterns.  This is why you see a lot of people in the gym with minimalist shoes or powerlifters who wear chuck taylors.  You don't need to buy fancy shoes to get a more stable base.  Doing your squats and deadlifts bare foot is an o.k. option to provided you make sure a round plate wont fall and crush your foot.