The Instructors

The Instructors

All instructors have gone through comprehensive training programs requiring at least 500 hours of coursework and practice training hours.  At 3cPilates, instructors are encouraged to be creative with their classes and vary their workouts while following the key principles of the Pilates Method.

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Jan Berthy

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Owner – Jan Berthy trained to become an instructor through Balanced Body, Inc., with Karen Sanzo, PT, at Pilates Unlimited in Dallas, TX.  Jan has training in Pilates Mat Beginner/Advanced, Pilates Apparatus 1,2, and 3 (tower, chair and barrel), Reformer 1, 2 and 3, and Anatomy. Jan also obtained a B.S. Degree from Louisiana State University in 1986 majoring in Quantitative Business Analysis with a focus on Computer Information Management. She left her Information Technology career in 2000 to be a stay at home mom.  Jan discovered a passion for Pilates as a client leading to her certification training with Balanced Body, Inc.

“Pilates helped me personally to eliminate shoulder and back pain, tone my body and has proven to be a great method for dealing with stress.  I knew I wanted to share this method others.  I look forward to helping you along your journey.

Heather Atendido

Heather graduated from William Jewell College with a B.S. in Business Administration. She started practicing Pilates in 2000. She quickly saw with benefits of the practice. In 2010 she started her full certification with Balanced Body University, under Karen Sanzo at Pilates Unlimited in Dallas, TX. She has completed her full certification on all Pilates apparatus, over 520 hours of training.

Heather enjoys working with all levels of students ranging from a new client to athletes at all levels. She is currently pursuing her certification through Titleist as a TPI instructor.

“One of the most rewarding things to hear from my clients is after doing Pilates they find themselves moving throughout their daily activities more efficiently and easier. Heather teaches private sessions as well as group equipment classes.”

Arlyane Dahlin


Certified Pilates Instructor- Balanced Body, Inc. – Pilates Unlimited.  B.A. Degree Dallas Baptist University majoring in Business and Kinesiology.  Arlyane offers 12 years experience instructing any age group or fitness level leading to an enriched quality of movement and a journey of strength, length and muscle tone.  Your Pilates commitment will increase your oxygen intake, balance, flexibility, joint mobility and posture creating a strong core for increased energy and stamina.  You will find yourself enjoying and committed to the adventure of continuous growth.

Arlyane is an example that Pilates is a sustainable exercise for any age group or any fitness level leading to an enriched quality of life.

Karen Bowman – Pilates Instructor and Orthopedic Specialist

Originally a physical therapist, Karen graduated with her BS in Physical Therapy from The University of Connecticut in 1996. She worked in several different specialties over the next 13 years, including long term care, acute care, aquatic therapy, neurological care and orthopedic medicine in Connecticut.
She discovered her love of Pilates in 2001.  A big part of her job as a physical therapist was lifting patients, which in turn led to substantial pain and discomfort in her own body. After starting Pilates she saw improvement in posture and experienced significantly less pain. By adapting the principles of Pilates, she began incorporating them into her orthopedic work and saw excellent results.
Karen moved to New Jersey after her third child was born, and became certified in Mat Pilates there, teaching out of her house. After her move to Texas in 2011, she continued to work in physical therapy at Baylor, incorporating Pilates into her orthopedic and neuro patients’ routines. With three young children, Karen decided to focus on Pilates certification through Balanced Body and stays on as a per Diem PT with Baylor.
With her experience, Karen is able to modify Pilates exercises to adjust for limitations and accommodate all fitness levels to create a solid foundation for years of sustainable healing . Her personal Pilates instruction philosophy is to keep the body healthy, strong, centered and balanced to create a real change in the lives of her clients. In her off time Karen enjoys spending time with her husband and three children, hiking, cross-training and skiing with her family.

Amanda Duncan – Physical Therapist/Pilates Instructor

Maxine Chappell

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Bio Coming Soon

Beth Chenoweth

Beth trained to become an instructor through Balanced Body, Inc., with Karen Sanzo, PT, at Pilates Unlimited in Dallas, TX.  She has training in Pilates Mat Beginner/Advanced, Reformer 1, and 2, and 3, Apparatus 1,2, and 3 (tower, chair and barrel) and Anatomy.

Katerina Nicodemus – sub

Katerina – PMA®-CPT is a comprehensively trained Yoga and Pilates instructor.

Yoga – She received her 500RYT Yoga certification from the Karuna Yoga School at Shipton under Wychwood, UK in 2011 and has been teaching ever since. She also holds her E-RYT 500 from the Yoga Alliance. In 2016, Katerina became a Yoga Warriors Instructor for Post Traumatic Stress and the Mind-Body Connection.

Pilates – She also in 2016 started Pilates reformer training through Balanced Body.  Katerina then entered comprehensive Pilates training under under Sherri Betz (TheraPilates) and is now PMA certified.  Influenced by her occupational therapy education, Katerina also attended beginner and advanced Pilates for Neurological conditions.  She trained under the Neuro Studio with Mariska Breland and Meghann Koppele.  Katerina also became a qualified teacher of the CoreAlign equipment under Balanced Body and plans to be certified.  Katerina is originally from the Czech Republic, has 3 daughters, a dog and a cat.  She firmly believes in the power of breath and movement!

Emily Armstrong – sub


Emily brings more than 11 years of Pilates instruction experience. She taught Mat throughout college while pursuing a bachelor’s in economics. After college, she continued to build her Pilates skillset as a reformer instructor in Maryland and Virginia. In 2012, she accelerated her training by receiving certifications in Reformer 1 & 2, Cadillac/Tower, Anatomy, Mat 1, and Mat 2 from the well-regarded Balanced Body University in California.

Now in Texas, she enjoys working with all clients from novice to advanced. As an easy-going person, Emily connects well with every client on an individual level, helping them feel comfortable and confident while also motivating them to challenge themselves to meet their goals.

“Every day I wake up grateful for my health, family, and life. I believe that it’s important to walk gently and have empathy, no matter what I do. And I can’t wait to help inspire growth and change in you!”