Well, I'm not sure it's exactly like this kinda force, but most of the time I find life-drawing so hard I wish I could get Yoda to help me!
I'm reading about a different kind of force though, and how by understanding it, your life-drawing and gestures can really improve. I got this book:
through the "scribd" website which is a really good site that you can subscribe too (and get a free trial for a month) and read lots of great books online - including tons of art and reference books. I've been practising the exercises in it to understand different types of forces on the body depending on what pose they are in. Here are some pages from my sketchbook:
I would really recommend checking it out and there are a few more by the same author that are pretty cool too. The book is really in-depth (at nearly 250 pages) but I think it can be summed up in this quote that the author highlighted by the author William Faulkner:
"THE AIM OF EVERY ARTIST IS TO ARREST MOTION, WHICH IS LIFE, BY ARTIFICIAL MEANS AND HOLD IT FIXED SO THAT A HUNDRED YEARS LATER, WHEN A STRANGER LOOKS AT IT, IT MOVES AGAIN SINCE IT IS LIFE"