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Isolated Stretching
Active Isolated Stretching (AIS) is a method of stretching developed by Aaron Mattes,
kinesiotherapist and massage therapist. AIS has the patient contract a muscle, or group of
muscles, opposite of the muscle or group of muscles being stretched.
For example: If we wanted to stretch the hamstring muscle group (flexes the lower leg),
we would have the patient contract the quadriceps (extends the lower leg), while gently
stretching the hamstring muscles.  Passive Isolated stretching is performed in a manner
whereas the patient remains in a relaxed state while a gentle stretch is being applied.

These methods are widely used by physical therapists, athletic trainers and athletes to
achieve optimal flexibility and range of motion, and is a great tool for maintaining movement
and structural balance after receiving Myofascial Integration work.

These methods of fascial release provides effective dynamic facilitated stretch of major
muscle groups, but more importantly functional and physiological restoration of superficial
and deep fascial planes.

Performing an active and/or passive isolated stretch of no longer 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.
Active and Passive Isolated Stretching
Advance Massage Therapy
123 Rottingham, Ste. B
Edwardsville, Illinois 62025