About StretchingUSA

StretchingUSA specializes in the practice and education of Active Isolated Stretching (AIS), a comprehensive system developed by renowned Kinesiologist Aaron L. Mattes, MS, RKT, LMT.

For more than 40 years, Aaron Mattes has refined and advanced the Active Isolated Stretching method, establishing it as a respected approach to improving flexibility, mobility, muscular function, and overall movement. Throughout his career, he has trained tens of thousands of healthcare professionals, massage therapists, athletic trainers, personal trainers, and movement specialists from around the world. Today, his teachings continue to influence practitioners internationally through education, clinical application, and ongoing research.

Lance A. Mattes, BS, CPT

Lance A. Mattes is an Active Isolated Stretching Specialist with more than 25 years of professional experience providing AIS stretching and strengthening programs while also educating healthcare professionals, therapists, and fitness trainers in the AIS method.

Lance earned his Bachelor of Science degree in Exercise Science and Sports Medicine from Samford University in 1995. Prior to beginning his career in Active Isolated Stretching in 1998, he played both collegiate and professional football. He is also a Certified Personal Trainer.

Currently, Lance practices privately at Aaron Mattes Therapy / StretchingUSA, where he works with a diverse range of clients—from professional, collegiate, and amateur athletes to individuals seeking improved mobility, injury recovery, pain reduction, enhanced performance, and functional strengthening. His extensive clinical experience allows him to develop individualized stretching and strengthening programs tailored to each client’s specific goals and needs.

Lance is also on the Advisory Board of the Sarasota Chapter of the Amercian Cancer Society working to raise money and awareness for cancer treatment and awareness.

Tyler A. Mattes, BS, CPT

Tyler A. Mattes represents the next generation of Active Isolated Stretching practitioners, continuing his family’s commitment to movement education and clinical excellence.

Tyler earned his Bachelor of Science degree in Kinesiology from the University of Montevallo in 2020 and is a Certified Personal Trainer specializing in Active Isolated Stretching and strengthening. As the son of Lance Mattes and grandson of Aaron Mattes, Tyler has grown up immersed in the principles and practice of AIS.

A former collegiate baseball pitcher at the University of Montevallo, Tyler combines his athletic experience with his education in kinesiology to help clients improve mobility, flexibility, performance, and functional movement. He works with athletes and individuals of all activity levels, providing personalized stretching and strengthening programs designed to restore movement and optimize physical function.

Together, Aaron, Lance, and Tyler Mattes continue the tradition of advancing Active Isolated Stretching through hands-on clinical care, professional education, and a commitment to helping people move better, perform better, and live healthier lives.