Our central office is located at:
AIS Northwest, LLC
2603 Bridgeport Way W., Ste. C
University Place, WA 98466
(206) 992-4029
Email: info@aisnorthwest.com

Quality Continuing Education Since 2006
We offer comprehensive stretching & strengthening solutions in Active Isolated Stretching (AIS) and Strengthening for optimal health & well-being.
Our approach is based on the principles of Active Isolated Stretching and Strengthening; pioneered by Aaron Mattes over 40 years ago. Active Isolated Stretching (AIS) is a dynamic flexibility system derived from extensive research in kinesiology, the study of muscles and movement. AIS takes into account each joint, its movements, and the muscles that create those movements. It is the most in-depth stretching system currently in use in the world.
Active Isolated Strengthening is a system that takes your core and foundation into account. It utilizes precise exercises to achieve local joint stability, stamina, and power. This will give you the dynamic strength you require for optimal function. With greater flexibility and strength your body can maintain balance that reduces stress on joints and allows release from a multitude of physical restrictions and weaknesses that impair health and well-being.
As we age our muscles tend to lose elasticity and recovery from injuries may take longer. Physical trauma, stress, and repetitive movements over the years result in nerve impingement, shortened muscles, and decreased mobility. Stretching increases circulation, reduces pain, improves athletic performance, helps to restore balance, and promotes faster recovery from injury. Strengthening allows the gains made through stretching to be maintained by creating stability in the joint, which allows the muscles to relax.
To learn more about Aaron L. Mattes, the pioneer of Active Isolated Stretching (AIS); go to www.stretchingusa.com
The effectiveness of AIS is based on the principle of reciprocal inhibition, in which a contracting muscle (agonist) sends a signal to the opposite muscle (antagonist) to relax so that movement can occur. Physiologically a muscle is more easily stretched when there is active muscle contraction. AIS utilizes the principle of reciprocal inhibition by employing specific, active movements for each exercise.
The other key principle in AIS is related to the built-in protective mechanisms of muscles. Sensors located in specialized muscle fibers called muscle spindles, detect changes in muscle length and the speed at which lengthening occurs. The spindle cells monitor for sudden stretches (a quick movement), excessive stretches (pushing the joint further than physically possible), and stretches held under stressful conditions. When the spindle cells sense any of these conditions within the muscle, it triggers the stretch reflex, which causes the muscle to contract.
To avoid triggering the stretch reflex, keep your movements active, gentle, slow, and rhythmic. Go into the stretch until you feel the first signs of tension, release and repeat. Never push the stretch so far as to feel pain or hold the stretch for so long as to create stress. By adhering to these physiological principles. your body can attain quick gains in flexibility without injury.
AIS has other benefits in addition to improved flexibility. Each stretch is repeated several times similar to a work-out. The pumping action of repeated muscular activity and deep breathing promote better circulation, the removal of metabolic waste products, and the delivery of nutrients and oxygen to the cells. AIS affects superficial and deep fascial layers by realigning collagen fibers and breaking up adhesions and scar tissue. Since AIS is an active stretching work-out of major muscle groups, it does not require a warm-up phase and can be used to prepare for any exercise program.
Under the skilled guidance of a trained practitioner, AIS is effective in alleviating the symptoms of numerous physical disorders:
- Arthritis
- Tendonitis
- Headaches
- Muscular Injuries
- Ligament Injuries
- Frozen Shoulder
- Neck Pain
- Lower Back Pain
- Nerve and Muscular Impingement Syndromes
- Scoliosis
- Fibromyalgia
- Multiple Sclerosis
- Parkinson's Disease
- Plantar Fasciitis
- Heel Spurs
- Poor Circulation
- Edema
- Pre- & Post Surgical Conditions
- Carpal Tunnel Syndrome
- Thoracic Outlet Syndrome
- Bulging and Herniated Disc