Essential Reading - Minimise Spinal Movement

"...as we approach peak working loads or muscle fatigue, it is important that at the moment we reach close to no velocity or bar movement, that our spinal position remain the same. That is, as we begin to move toward what is ultimately a near isometric contraction (mid-way through a press you get stuck) there should be no deviation what-so-ever in your set up positioning. The set up and pull is the same for deadlifting a hundred pounds or two-thousand pounds. Post-maximal loads can be safely handled in an iso-metric position if there is no deviation from an ideal or best-fit set up. We get into problems when there is movement in the spine under load..."  Read more
 - Kelly Starrett