At All in Gym Training Co.,

we help coaches and gym owners build truly inclusive, regulation-first gymnastics programs—where neurodivergent athletes and athletes with disabilities are seen, supported, and celebrated.

Founded by a pediatric physical therapist and long-time adaptive coach & judge, our work blends behavioral neuroscience, movement expertise, and real-world gymnastics experience to offer training that’s practical, empowering, and deeply human.

We don’t believe in perfection—we believe in progress.

We don’t believe inclusion is an “add-on”—we believe it’s the foundation.

Through online courses, downloadable resources, and in-person trainings, we’re here to equip you with the tools to coach every athlete with confidence and compassion.

Because every child deserves a place to belong—and every coach deserves to know how to create that place.

Jill Bosack

Co-Owner

With over 30 years of experience in inclusive and adaptive gymnastics and trampoline, wearing hats as an athlete, coach, and judge, I am passionate about education and advocacy! My journey is inspired by my son, who has an exceptionality. Through his influence, I've actively advocated for and contributed to the development of the USAG T&T HUGS program.

My motto: Radically Inclusive & Are you ALL IN?!

Dr. Sigourney Weathers, PT

Co-Owner

Dr. Sigourney Weathers, PT, DPT is a pediatric physical therapist, inclusive and adaptive gymnastics coach, and educator specializing in neurodiversity-affirming, neurodevelopmental, and nervous-system-informed coaching and movement support. She is the owner of Balanced Creations Therapy & Trampoline and co-owner of All-In Gym Training Co., where she helps gymnastics facilities build confident, sustainable adaptive and inclusive programs that support athletes of all abilities.

Sigourney has over 20 years of gymnastics coaching experience and more than 10 years of experience supporting neurodivergent athletes and athletes with disabilities across recreational, competitive, therapeutic, and adaptive gymnastics settings. She combines clinical pediatric therapy knowledge with real-world gymnastics coaching experience to help coaches better understand behavior, regulation, communication, sensory processing, motor development, and skill progression within gymnastics environments.

She is known for her practical, hands-on teaching style that helps coaches immediately apply what they learn on the gym floor while maintaining structure, safety, and athlete connection. Her work focuses on helping gyms create environments where more athletes can successfully participate, belong, and grow within the sport of gymnastics.

My motto is: BOUNCE, PLAY, THRIVE & Smiling Upside Down

Joy Umenhofer Stovall

Expert Educator

With over 50 years of experience in gymnastics and trampoline, I bring a passion for sports and a degree in Recreational Therapy to my journey. Throughout my career, I've coached world-title gymnasts and trampolinists, contributing my own moments in the spotlight. Now, as an expert educator with All in Gym, I'm dedicated to sharing my wealth of knowledge and inspiring a new generation of athletes and coaches. Together with the All in Gym team, we strive to break barriers, create supportive spaces, and empower individuals of all abilities to thrive in the world of gymnastics and trampoline.