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 »…

Bridge

I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff. Lie on your back with your hands flat on the floor. Your arms along your body with your knees bent : Inhale and lift your buttocks from…