One of the cool things about learning new methods and ideas of treatment is figuring out the WHY's. One of the things about Functional Range Release is the idea of what you are actually influencing. It's the cells, the communication of cells is force. You pushing or treating of muscles is influencing cells by an external force and things like isometrics are an internal force to the cells. This is all backed by science. On my own I've been reading more about the biology of cells and things of that nature and found this cool video that is trying to give a visual to the working of cells. I think it's pretty cool. Enjoy.