The past 2 days have been beautiful and fascinating. Beautiful because what other course can use a beach at sunrise as a classroom to teach a component of their course? In this case, 3-D movements. Fascinating because  it is a new approach to the rehabilitation of injuries, improving efficiency of movements in your sport or just allowing someone the freedom to be able to perform daily tasks pain free. I think my level of comprehension for this physio geared course was surprisingly good because the information really is not new, well the information about the body anyway. What is new is the idea of taking a 3 Dimensional Approach to it all. Understanding that it is a lot different to swing a leg at the end of an evaluation table and concluding that the quadraceps must extend the knee then it is to drive the foot into the ground during the walk or run gait and watching the chain of events demonstrate that the quadraceps do not actually extend the knee, but instead, their primary focus is to eccentrically decelerate the bending of the knee. Can you guess at which muscles extend the knee during running?