OUR MISSION

Building Confidence Through Movement Since 1976

Located in New Hyde Park, Long Island, Progressive Athletic Center (PAC) is a woman-owned, family-operated business dedicated to children's fitness, education, and development. For 50 years, we've welcomed generations of families, creating a place where learning, fun, and fitness come together.

We believe every child deserves the opportunity to learn, grow, and experience the joy of movement. From beginner gymnastics to advanced athletic training, our goal is to build confidence, encourage determination, and inspire a lifelong appreciation for physical activity.

Our talented coaching team, including head coaches with over 10 years of experience, brings creativity, knowledge, and genuine care to every class. Through thoughtful instruction and individual attention, we create an environment where children feel supported, challenged, and excited to learn.

Founded by Wendy Cassell in 1976, the PAC continues to be guided by dedication, fun, and hard work. We take pride in the relationships we build and the lessons that extend beyond the gym. At the PAC, you're not just joining a program—you're becoming part of our family.

Our coaches bring years of expertise, energy, and a genuine passion for teaching and inspiring young athletes.

Generations of Leadership, One PAC Family

Alexis Valvis

Executive Director and Gymnastics Program Manager

Alexis serves as Executive Director and Gymnastics Program Manager at Progressive Athletic Center. She holds a Bachelor's degree in Biology from Binghamton University and a Master's degree in Exercise Physiology from Queens College.

With years of experience in gymnastics and youth development, Alexis has played an important role in growing the PAC's gymnastics program. She has developed four advanced-level programs and serves as head coach of the USAIGC competitive gymnastics team, guiding athletes through State, Regional, and World Championships. Her coaching focuses on strong fundamentals, discipline, and helping athletes develop the confidence and determination to succeed.

An athlete herself, Alexis spent 16 years in gymnastics, including 10 years competing, before continuing her athletic career in competitive volleyball at Binghamton University.

Outside of the PAC, Alexis enjoys pilates, traveling, and spending time with her family. She lives in Great Neck with her husband and two young children, who have already earned their titles as honorary PAC staples!

Wendy Cassell

Founder and Owner

Wendy Cassell is the founder and owner of Progressive Athletic Center, proudly serving generations of families since 1976. With a background in Physical Education and Early Childhood Education, Wendy began her career teaching college-level Physical Education alongside gymnastics classes in local high schools and dance studios, eventually turning her passion for children's fitness into a family business.

Over the past 50 years, Wendy has expanded her original vision into a multifaceted center for children's athletics, education, and development. Today, the PAC offers gymnastics, Ninja Warrior, dance, Taekwondo, and Birthday Parties. She is also the founder and owner of Ready Set Grow Preschool, a subsidiary of the PAC, bringing her passion for early childhood education into the classroom.

Her entrepreneurial spirit, attention to detail, and commitment to quality instruction have made the PAC a staple in the community. She leads with a firm but caring hand, emphasizing family, communication, trust, and hard work.

A former gymnast and cheerleader, Wendy has always had a passion for movement and athletics. Outside of the PAC, she enjoys traveling and collecting unique artwork from local artists along the way. And if you know Wendy, you know her signature red hair is almost as bold and ever-changing as her ideas!

Victoria Valvis

Executive Director and Ninja Warrior Program Manager

Victoria serves as Executive Director and Ninja Warrior Program Manager at Progressive Athletic Center. She holds a Bachelor's degree in Integrative Neuroscience from Binghamton University.

With a passion for youth development, building community and leadership. Victoria plays an important role in overseeing PAC operations and growing its programs. She's been instrumental in developing the Ninja Warrior program, with obstacle courses that challenge athletes physically and mentally while encouraging problem-solving, determination, and creative thinking.

Victoria believes great coaching start with preparation, shared goals and lots of laughter. Her goal is to create an environment where coaches and families feel comfortable learning, having fun, and celebrating progress together.

Outside of the PAC, Victoria enjoys running (half-marathons!), trying new hobbies, and making people laugh. She calls Manhattan's Upper East Side home, but her heart (and most of her weekdays) still belongs to the PAC!