Extensa instructor working with an athlete

About Extensa™

Our story starts out with Sarah Feilders, the creator of the Extensa method and an accomplished dancer and dance teacher. For many years, Sarah performed in dance shows, competed in competitions and taught dance classes in Canada, the USA and Mexico. Once retired from performing, Sarah continued teaching and obtained group fitness and Pilates certifications. She transitioned into the fitness industry by teaching dance style fitness classes. Her classes quickly became popular as participants saw quick results. They were stronger, had better balance and were more flexible. Clients began approaching Sarah, not only to get in shape but also specifically to improve their flexibility. Sarah continued to develop her expertise and education through research, workshops and certifications. She focused on building flexibility through strengthening and stretching techniques, balance training and core strength. Sarah expanded her career to the sports industry and specialized as a flexibility coach for top athletes for many years.

After years of research, practice and revision, the method of Extensa was created.

Our Mission:

The Extensa method is flexibility training that consists of three individual programs (Extensa Fitness, Extensa Flow and Extensa Performance) which meet the need for result based training. Each program is unique and caters to different demographics, interests and fitness levels. In order to keep up with the high demand for Extensa classes and address the need for qualified flexibility instructors in the fitness and sports industry, the Extensa instructor certification program was created.

Our expertise:

We specialize in instructor certification, group program design, private training programs, online training and continuing education workshops. 

Extensa instructor working with a participant

What makes us different

Most stretching programs attempt to increase flexibility using only passive stretching techniques. This leads to boredom, difficulty holding positions for the required length of time and over-stretching. The Extensa method is not just stretching, it is a flexibility program. Flexibility programs are a combination of active, dynamic and passive stretching techniques with an emphasis on balance and core strengthening. Extensa classes promote proper muscle recruitment, joint mobility and stability throughout the kinetic chain and improved posture.


We believe that in order to achieve true flexibility, the body must move the way it was intended: through as many planes of motion and joint actions as possible.

An extensa instructor working with a client

Become an Extensa™ instructor

Get certified with the Extensa method and become a flexibility specialist. 

Neck stretch during filming of an extensa video series

Get flexible with Extensa™

Train online or in person with a certified Extensa instructor.

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© 2020 StretchAppeal® Inc. Creators of Extensa™