Meet Our Team

 MARISA CERVERIS - Owner

Senior Instructor

Marisa, a dedicated practitioner of Pilates for nearly four decades, brings a wealth of experience to her role as the founder and owner of our studio. Her journey in Pilates began as an essential component of her training with The New York City Ballet.

With a career that took her around the world, performing with various professional dance companies, Marisa had the opportunity to immerse herself in different styles of Pilates practice, deeply influenced by her background in dance. She studied with several Pilates elders, including those directly trained by Joe Pilates himself.

Her training with Balanced Body and master trainer Ellie Herman is complemented by her continuous study with teachers both locally and internationally. At our studio, Marisa’s expertise and passion for Pilates guide our clients toward a path of strength, flexibility, and inner empowerment.

MARIA DIESER

Senior Instructor

Maria, originally hailing from Long Island, New York, has recently become a part of the Lehigh Valley community. Her journey here is fueled by her deep connection to the world of dance and her extensive experience with Pilates.

With a busy life that includes raising three young children with her husband, Maria remains dedicated to her passion for health and wellness. She believes Pilates fosters balance in one’s life across mind, body, and spirit.

KATIE DONNELY

Senior Instructor

Wife, mom, pilates teacher, and kinesiology professor, Katie wears many hats. She came to Pilates through the window of ballet and discovered her passion in helping pre- and post-natal clients through Prenatal Pilates.

Whether your goal is more energy, strength, or confidence, Katie will help you create a session as unique as you are.

ERIN DONOHUE

Senior Instructor

As a Dancer, Pelvic Floor Physical Therapist, and Pilates enthusiast, Erin believes her PT work is deeply enriched by her Pilates practice. She brings deep curiosity and care to her work and family life.

Her goal is to help you show up for yourself — and keep up with your kids!

REBECCA (BECCA) FULMER

Junior Instructor

Becca is a Power Pilates™ teacher trainee (300 hour certified) whose precise cuing and warm, encouraging presence make her sessions both focused and fun. Currently mentored at SteelCoreStudio , she blends classical foundations with a modern, athletic approach to build strength, mobility, and confidence.

Becca works closely with clients to refine form and alignment, offering clear progressions so every session feels achievable and rewarding. She is available for private sessions and small-group work and assists in select group classes.