A group fitness experience that includes innovative programming, amazing music, and a diverse and dynamic team is the best way for your Y to increase engagement, foster a sense of belonging, and build a stronger community of loyal members.


The shared experience found in group fitness encourages connections – from your staff to your members and with members to each other – and impacts retention. Interactions with staff and the opportunity to make friends improves your members’ likelihood of success.


Group fitness is the best way under your fitness roof to facilitate and build relationships, to encourage and support members, and to build and retain a community of like-minded movers at your YMCA. And the more inclusive and inviting, the better!


We partner with Ys to provide the kind of group fitness that can turn your group fitness department into an engaging community of long-time, loyal movers.

Cathy Spencer Browning
VP of Training & Programming


We’re excited to welcome you to our hometown of Atlanta and to the YMCA General Assembly 2023! We look forward to seeing you and hope you’ll find it motivating and insightful.

If you’re a current MOSSA partner, thank you! If you’re new to us, we’re MOSSA, the exclusive provider of the YMCA Group Exercise Programs, proudly helping hundreds of Ys nationwide deliver amazing group fitness programs.

We hope you’ll move with us at morning workouts, visit us in the exhibit hall, and celebrate with us at our Meet & Greet! See details below.

Visit us at booth #1229 in the exhibit hall.


Start your morning with a workout that will make you mind and body strong! Group Centergy, also known as Balance & Flex Together, is an invigorating wake-up and workout that incorporates yoga and Pilates fundamentals with athletic training for strength, balance, mobility, and flexibility. In 60 music-motivating minutes, you’ll flow through full-body movements, to begin your day calm…yet energized.

Group Centergy is being offered on Friday and Saturday mornings at 6:00 AM at the Marriott. Registration is required and is available through the YMCA General Assembly conference registration portal.


Take your morning workout in every dimension and direction with us in 3D30, also known as Conditioning Together, and discover the ground-breaking science and real-life benefits of Loaded Movement Training. This 30-minute HIIT-style workout, set to a dynamic soundtrack, integrates strength, cardio, and mobility training to help you build an unbreakable body, perform like an athlete, and feel unstoppable all day.

3D30 is being offered on Friday and Saturday mornings at 6:00 AM and 6:30 AM at the Westin. Registration is required and is available through the YMCA General Assembly conference registration portal.


Let’s toast to General Assembly on Friday! Meet and greet us for desserts and drinks at Stats Brewpub, Friday, July 21st from 8:00 PM to 11:00 PM.


We partner with Ys to help them deliver inclusive, innovative, inviting, and inspiring group fitness experiences to their members and guests. We provide instructor recruitment and training, sales and marketing support, plus Y-branded programs and promotional materials.

With MOSSA, your YMCA can deliver diverse, musically-driven workouts that are developed and tested to inspire and equip all people to move well outside of the fitness space and in their real lives, with can-do bodies and attitudes to match.

Let’s move

Let’s Move!®

Interested in Mossa?

MOSSA is the exclusive provider of the YMCA Group Exercise Programs. Let us know if you’re interested in learning more.

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