Active Isolated Stretching Course

Active isolated stretching course for massage therapists and fitness professionals

Students Will Learn To

  • Assess the ROM of each joint compared to their Normal ROM
  • Optimize the flexibility of all the major muscles in the body
  • Precisely stretch different aspects of the same muscle
  • Isolate either the proximal or distal portion and stretch it effectively
  • Achieve a healthy maximum range of motion in a few sessions
  • Increase strength in the proper direction with perfect alignment
  • Use these techniques to shorten injury recovery time
  • Use these techniques to prevent injury

Course Overview

Active Isolated Stretching is a cutting-edge and innovative form of stretching that works. AIS was developed by Kinesiologist Aaron L Mattes that utilizes the inherent properties of muscles and soft tissue in order to not only effectively isolate and lengthen a target muscle, but also to enhance the connection to the central nervous system. The result, in addition to remarkably increased flexibility, is better control and quicker firing of the muscles. This work will prove to be an invaluable tool in both the treatment and prevention of musculoskeletal conditions as well as degenerative neurological conditions. Because of the interaction with the central nervous system, this work has stunning results with degenerative neurological conditions that can otherwise not be effectively treated through manual therapy. Broaden your scope of practice by learning one of the most cutting-edge techniques in the bodywork world!


  • AIS gives us a way to treat parts of muscles that cannot be accessed with manual pressure.
  • Because your clients are active in the motion it is less work for the therapist and easier on the therapist’s body than traditional massage.
  • Think about how effective you can be if you know how to precisely stretch each muscle that you also treat with massage
  • Clients remain fully clothed while receiving AIS therapy so this can be a good and thorough and effective approach to clients who do not like to disrobe for massage.
  • Adding a new service to your list of treatments broadens your market.
  • AIS therapists work with injuries, chronic pain and athletic performance. Because AIS also works with the way the nervous system communicates with the target muscle AIS can be very helpful in managing some symptoms of neurological conditions such as parkinsons, multiple sclerosis, cerebral palsy and others
  • Learning new techniques in an area abundant with the healing qualities of nature, fresh food and sunshine is an experience unto itself.
  • Being able to stay on site or close by and give all of your focus to the technique you are learning will have you ready to use these techniques on the first clients you see after the course!
  • 29 Hours NCBTMB Approved Massage Therapy CEU
    • Active Isolated Stretching for the Lower Body: The Mattes Method (15 CE hours)
    • Active Isolated Stretching for the Upper Body: The Mattes Method (14 CE hours)
    • Thomas J. DuBois NCBTMB Approved Provider Number: 34
  • No Prerequisites
  • Open to Massage Therapy and Fitness professionals


Thomas J. Dubois was drawn to the field of massage as an exchange student in college in Nagpur, India.  During his time in India, Thomas learned to speak, read, and write Hindi, and was intrigued by the health benefits of regular massage, something that has been practiced routinely in India to treat a wide variety of health conditions for thousands of years. This experience led him to pursue massage therapy education.

After graduating from the Hudson Valley School of Massage Therapy in West Park, New York, Thomas specialized in orthopedic massage and the Active Isolated Stretching and Strengthening technique. In 2012 Thomas received permission from the founder of the AIS technique, Aaron L. Mattes, to teach it to other massage professionals as a continuing education course.

Thomas has a practice in Glenwood Springs Colorado he works with injuries, chronic pain and helping athletes improve physical performance. He also teaches Kinesiology and bodywork at the Costa Rica School of Massage Therapy.

Instructor: Thomas J. DuBois
Dates: June 23 - June 29, 2024
Location: Samara, Costa Rica
Cost: $1,100 - $1,450

Frequently Asked Questions


$1,100 – Tuition and Shared Room

$1,300 - Tuition and Single Room Upgrade


Enjoy simple and comfortable accommodations in our Costa Rican-style bungalows tucked away in the heart of Playa Samara just seconds from the beach. Each 2 or 3 bedroom bungalow is fully furnished with a fully equipped kitchen, bathrooms, and living room. Single or double bedrooms are available as well as studio apartments. Enjoy the swimming pool, lush gardens, WiFi access, hot water showers, and fans. A/C is included for all on-campus housing options for this course.

What's Included?
  • 29 Hours NCBTMB Approved CEU
  • Airport Pickup and Dropoff
  • 6 nights lodging in our Oasis Bungalows fully appointed cabins with complete kitchens in the heart of Playa Samara
What's Not Included?

Exterior view of on-campus living, including a swimming pool

Interior view of living space
Interior view of a kitchen space, fully equipped with appliances and cookware/flatware
Interior view of a shared bedroom

Request More Information

Thomas DuBois on A Touch of Costa Rica Podcast

Are you ready for a life-changing experience? Thomas DuBois confides how two transformational experiences put him on a journey to becoming a holistic practitioner and teaching others about the active isolated stretching modality.

Thomas also shares his favorite Samara image that he would place on a postcard.




Playa Samara is a perfect paradise for continuing education in orthopedic massage in Costa Rica. The town is nestled in the beautiful green hills of the famous Nicoya Blue Zone on the Pacific Coast of the peaceful Central American nation.


Enjoy strolling the streets of the small downtown area and visiting the many local and international restaurants, bars and discos, and cute gift shops. The beautiful and tranquil Samara Bay is surrounded by miles of palm tree lined white sand beaches and provides a perfect and safe location for kayaking, snorkeling, surfing, SUP, and swimming as well.