The landscape of youth fitness in Wellesley has a new addition as energetic as a kid before recess. My Gym Children’s Fitness Center has officially opened its doors, offering active play experiences and classes for children from as young as three months up to 10 years old. Located at the former We Rock the Spectrum space in Wellesley Square, My Gym, with over 600 franchised locations worldwide, is all about physical play and developmental growth.

Under the leadership of Ryan Debin, CEO and founder of Momentum Enterprises, this new location marks the eleventh My Gym under his corporate umbrella. Debin’s Momentum Enterprises, a Boston-based firm, includes a variety of fitness-oriented ventures such as adult fitness clubs and racquet sports. For Debin, the Wellesley opening is more than just a business expansion.
“Opening our eleventh My Gym location in Wellesley is an exciting milestone for Momentum Enterprises,” says Debin. “Everything we do is rooted in helping families feel connected, supported, and inspired.”
Let’s keep it moving, people
The core philosophy of My Gym is simple: keep kids moving. The curriculum is structured so that there is no sitting or waiting in line. Instead, children rotate through various stations with active supervision from trained instructors.
“Every kid loves the ball pit,” says Craig Semenza, director of operations. “The rock wall is a big hit with the older kids, and we also have the trampoline, which they love.” Semenza says a zip line is expected to be operational by the end of the month, pending the arrival of final safety components.

Semenza is currently overseeing the Wellesley start-up, hiring staff and establishing the fun-and-safe vibe of the place. He’ll drop down from a full-time presence in Wellesley to occasional visits before he “slowly fades away” to allow the local team to lead.
Healthy body, healthy mind
The programming at My Gym is built around four core developmental pillars:
- Cognitive Development:Focusing on following directions and creative problem-solving.
- Physical Growth:Promoting strength, balance, and agility.
- Emotional IQ: Building trust, confidence, and self-esteem.
- Social Skills: Moving from parallel play to teamwork and fostering friendships.
For the youngest participants, the gym serves as a resource for caretakers as well. Semenza observed that parents and guardians often use the class time to discuss learning milestones and share parenting insights.

Class structure and accessibility
To ensure safety and personalized attention, My Gym maintains capacity strict limits and instructor ratios. The facility is designed to be family-friendly, welcoming grandparents to participate or watch. There’s also a comfortable entry area with a sofa for parents who need to catch up on work while their children play.
There are no long-term contracts or membership fees, and families can start or pause their enrollment at any time.
For more information on class schedules or to book an introductory session, check out My Gym’s website.










DATE: Sunday, May 17, 2026











