Body Mechanics Geekery

Just a quick note... I think the body angle to use is to work off Feldenkrais' observation that large muscles drive large movement, and that the small muscles' work should be reserved for small refinements of movement. You see this all over, but it's very tough to retrain consciously. (Seriously, try letting your forearms be mostly passive while using a mouse, or try signing your checks like a Chinese calligrapher, with the motions coming out of the shoulder. For most folks, including lil' ol' moi, we're talking order-of-magnitude refinement in how one is able to move.)