Muscular Levers.-These great muscular levers in the body forward on the thigh, and bring the legs inward toward each other, besides moving the whole body to and fro when walking, etc. The long, narrow muscle, seen running bleakly across the thought, is the Sartorius muscle, a so called from the fact that it crosses the legs for the sartorial (Tailor’s) posture. It is the longest muscle in the body.
When I attempted to look up the word ’sartorial’ in Wikipedia, I could find no reference for it. I’m not exactly sure what a tailor’s posture looks like. Maybe its a form of exercise and maybe its something that tailors used to employ when taking measurements years ago. I’m not sure. I can almost picture someone doing squats or leg lifts or something working with strength equipment to build up their muscles in some archaic way.
All I could find, was something that referenced the tailor posture for child birth.