Active Isolated Stretching was created by world renound kinesiologist Aaron L. Mattes. AIS is currently being used by therapists, trainers, athletes at all levels and people who just plain want to feel better. This Video will take you step by step showing you how to effectively stretch out your body and prepare you for playing your instument. Playing an instrument is an activity which many times asks you to remain seated for a period of time moving your body in repeated rhythmic movements to crate music. This means that you need to prepare your body from head to toe. Upper body flexibility is extremely important, but you also have to prepare your back and lower body for activity as well. In this Video you will see that you are using one muscle group doing the active movement to help stretch the opposite side muscle group while only holding the stretch for 1 ½ to 2 seconds. You will only want to use 3-4 ounces of assistance by either your opposite hand or a stretching rope. If you have any more questions on the theory or uses of AIS please visit our web site at stretchingusa.com. Now please enjoy this video and get flexible!