Jayda Armstrong, MS Exercise Physiology 

Certified Personal Trainer and Endurance Coach

Jayda completed her graduate degree at Southern Illinois University Edwardsville in 2008. She has worked as an endurance coach, personal trainer, and group fitness instructor for 10 years. She spent 5 years at NutriFormance from 2007-2012 before taking an 8 year move to Colorado where she worked as a personal trainer and elementary teacher. She rejoined NutriFormance in 2019 where she is continuing to personal train and teach group fitness classes. 

Jayda is an endurance athlete who has completed 12 marathons, including 2 Boston marathons, Ironman, and countless 5k, 10k, and half marathon races all over the US. She also enjoys yoga, and strength training to keep her body healthy and in alignment. 
- Nutriformance, St. Louis, MO

Certifications and Achievements:


Welcome to NutriFormance where every BODY matters and we strive to know all our client’s by name as well as understanding why they chose NF to pursue their fitness goals.  We hope to over-deliver in making NutriFormance like a second home, a fun environment that is also focused and dedicated to our clientele’s success.  

We aren’t chasing members just to hit a number.  We are pursuing clients who fit what we do, who appreciate a team of advanced professionals and a community that is much like an extended family.  We are far from a red-tape laden big box gym that only wants your membership dollars and doesn’t care about you as an individual.

Ellie & Dale
Ellie & Dale
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FREE 7-Day Trial Membership!

Unlimited Gym Access + Group Classes + Group Personal Training + Group Pilates

Call 314-432-6103 or fill out the form below to get started.

Questions? Feel free to contact us!