Good Position For Abs

Action on lumbar curvature of the psoas muscle Psoas muscles have other functions than to be powerful flexors of hip. They put the lumbar spine in lordosis, which increases the arch. I read a Frederic Delavier’s book « Strength Training Anatomy »…

How To Do Sumo Deadlift

I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff. Standing with the barbell on the floor in front of you. Your legs spread with your feet outside (always in your knees axis) : Bent your legs…