Hey I have nothing against russians! I have nothing against a black russian at the bar. (Well I would never drink one) Russian woman are some of the most beautiful ladies in the world…however a russian medicine ball twist/ rotation is on my Top 10 never to do list! When you fix your “sit-bones” on the ground, a bench, or a sit-up board you lock your lumbar spine in place. Moreover the fixed position now dictates the range to which your spine can move. The russian useless med ball rotation combines spinal flexion, with spinal rotation. HOLY disk grinder fat man! You will not lose or shrink, strengthen, anything in that region by doing these disproportionate deregulated spinal grinders! If you want to train and strengthen your core. or abs there are more effective alternatives. I will demonstrate many in the “How To” section of this site. If you’re not watching the How To’s you may want to get started! I developed this site for YOU, and it’s just the beginning watch the content in the near future…I am excited for YOU! If you choose to be excited?