Here is something interesting I found on the different kinds of stretching:
About The Mattes Method:AIS
This method of muscle lengthening and fascial release provides effective dynamic facilitated stretch of major muscle groups, but more importantly functional and physiological restoration of superficial and deep fascial planes.
Over the past decades many experts have advocated prolonged stretch up to 60 seconds. For years, this prolonged static stretch technique was the gold standard. Prolonged static stretching actually decreases the blood flow within the tissue creating localized ischemia and lactic acid buildup. This potentiates irritation or injury of local muscular, tendonous, lymphatic as well as neural tissues, similar to the effects and consequences of trauma and overuse syndromes.
AIS: The Mattes Method, is an effective treatment for deep and superficial fascial release, restoring proper fascial planes for optimal physiologic function. Performing an Active Isolated Stretch of no greater than 2.0 seconds allows the target muscle to optimally lengthen without triggering the protective stretch reflex and subsequent reciprocal antagonistic muscle contraction as the isolated muscle achieves a state of relaxation. Maximal beneficial stretch can be accomplished without opposing tension or resulting trauma.
Mattes Method myofascial release technique incorporates AIS which uses active movement and reciprocal inhibition to achieve optimal flexibility. Using a 2.0-second stretch has proven to be the key in avoiding reflexive contraction of the antagonistic muscle. Without activating muscle group contraction, restoration of full range of motion and flexibility can be successfully achieved.
Active Isolated Stretching: The Mattes Method centers on physiological principles of specific muscle lengthening, increased circulation and oxygen to the tissues, lengthening of the superficial and deep fascia. The seminar involves exact details of how to safely lengthen muscles and fascia simultaneously maintaining a physiologically based agonist-antagonist relationship.