Fascia

Here is a link to the first part of a 3 part talk about fascia and how it works in combination with muscles to produce power.
Really interesting, especially for the 'Internal' practitioners amongst us when comparing a western explanation of force transfer and physiology to the classically described alignment and movement principles of Bagua (and Xing-Yi and Tai Ji).

http://www.youtube.com/watch?v=B-SMUA3QfVw