Aaron Mattes   received his Bachelor of Science Degree from Wisconsin  State University-Superior, 1970, majoring in Physical Education. Mattes  received his Master of Science Degree from the University of Illinois,  Urbana-Champaign, 1972, with special emphasis in Kinesiology and  Kinesiotherapy. Mattes served as pitching coach for the University of  Illinois baseball team from 1970–1976. Over the past 45 years, he has  spent well over 250,000 hours in sports participation, sports and health  instruction, rehabilitation, athletic training, adapted physical  education, sports medicine, training and prevention programs.

According to Aaron Mattes, the Active Isolated Stretching (AIS)  method of muscle lengthening and fascial release is a type of Athletic  Stretching Technique that provides effective, dynamic, facilitated  stretching of major muscle groups, but more importantly, AIS provides  functional and physiological restoration of superficial and deep fascial  planes.” 

What is the Myofascial Release? This means achieving optimal  flexibility.  Simply put, it is a safe hands-on technique that involves  gentle sustained pressure on the specific muscles to optimally lengthen  without triggering the protective stretch reflex and subsequent  reciprocal antagonistic muscle contraction as the isolated muscle  achieves a state of relaxation. 

The AIS Technique - Deep, Superficial Fascial Release

Performing an Active Isolated Stretch of no longer than two seconds  allows the target muscles to optimally lengthen without triggering the  protective stretch reflex and subsequent reciprocal antagonistic muscle  contraction as the isolated muscle achieves a state of relaxation. These  stretches provide maximum benefit and can be accomplished without  opposing tension or resulting trauma.

Myofascial Release - Achieve Optimal Flexibility

Aaron Mattes' myofascial release technique, which also incorporates  Active Isolated Stretching, 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.