Recently on my Facebook page I linked to an article about Posterior Chain training. That’s a fancy phrase that powerlifters use to describe the lower back, glutes, and hamstrings. These are basically the “pulling” muscles if you lay flat on the floor on your front and pull your knees off the ground and up behind you. I mentioned that I normally trained these muscles hard, as they were majorly involved in mountaineering. Ryan of Climbingreport.com asked me for my opinions about why it was important, and while I gave a short answer on Facebook, I have a little more here. When walking uphill you normally place your foot out in…