ABOUT US

At 21BOOM Reimagine Fitness, we believe strength is the foundation for a healthy, capable life.

Our mission is simple: help people move well, stay strong, and age smart.

Through expert coaching, purposeful training, and individualized progression, we help people develop the movement, strength, and physical capacity to do more of what matters to them — in sport, work, recreation, and everyday life.

21BOOM isn’t about extreme workouts or quick fixes. We meet you where you are, help establish the right starting point, and provide a clear path for continued development.

OUR JOURNEY

THE JOURNEY BEGINS

21BOOM's story began in 1999 when Korey McCoy founded Plan 4 Fitness, LLC with a commitment to helping people improve their lives through personalized coaching, movement, and strength.

1999

BUILDING A TRAINING COMMUNITY

In 2003, Korey opened Plaza Fitness in Stuyvesant Plaza, creating a dedicated space for personalized training and establishing the foundation for the coaching community that would eventually become 21BOOM.

2003

MOVEMENT BECOMES THE FOUNDATION

In 2010, Plaza Fitness evolved into Plaza Fitness Performance, reflecting a fundamental shift in our approach to training. Movement quality became the starting point — helping us better understand how each person moves before determining how they should train.

2010

FROM PHILOSOPHY TO SYSTEM

In 2018, Korey published Your Performance Journey, introducing a more structured approach to assessing movement, identifying individual needs, and creating a personalized path for continued development.

The ideas introduced during this period helped establish the foundation for what would eventually become the 21BOOM System.

2018

21BOOM EMERGES

In 2020, a period of unprecedented change became the catalyst for our own transformation. Plaza Fitness Performance evolved into 21BOOM Reimagine Fitness, expanding our vision beyond a traditional training facility and creating new ways to help people move, train, and live well.

21BOOM represented more than a new name — it marked the beginning of a broader approach to lifelong movement, strength, and wellness.

2020

MOVE FORWARD

In 2022, Korey published MOVE FORWARD: The Journey to Extraordinary Living, expanding the philosophy behind 21BOOM beyond exercise and toward a broader understanding of movement, strength, health, and lifelong development.

MOVE FORWARD reinforced a principle that continues to shape 21BOOM today: where you start matters less than your ability to keep moving forward.

2022

Movement & Strength for Life

Today, 21BOOM continues to evolve around a simple idea: physical development is a lifelong process.

Through Personal Training, Small Group Training, Athletic Development, and WELL by 21BOOM, we help people develop the movement, strength, physical capacity, and healthy behaviors needed to remain capable and continue doing more of what matters to them throughout life.

The methods have evolved. The mission has become clearer: Move Well. Stay Strong. Age Smart.

2026

Meet Korey

FOUNDER • COACH • AUTHOR

For more than 25 years, Korey McCoy, M.S., has worked to better understand how movement, strength, coaching, and human development can help people live more capable lives.

His approach has evolved through decades of coaching people of different ages, abilities, and goals — from those beginning their movement journey to experienced athletes and adults focused on maintaining strength and capability throughout life.

As the founder of 21BOOM and author of Your Performance Journey and MOVE FORWARD, Korey continues to develop the ideas and systems that guide the 21BOOM approach today.

His philosophy is simple: meet people where they are, understand what they need, and help them continue moving forward.

WHY WE DO THIS

People don’t need more workouts. They need a better path forward.

Movement and strength influence nearly every part of how we experience life — how we work, play, perform, recover, and remain capable as we age.

Yet effective training isn’t simply about doing more. It begins with understanding the individual, establishing the right starting point, and creating opportunities for continued development.

That’s why 21BOOM takes a different approach. We combine assessment, purposeful training, individualized progression, and supportive coaching to help people build capabilities that extend beyond the gym.

Because the goal isn’t simply to exercise. It’s to build a body that allows you to keep doing more of what matters to you.