Instructor Shannyn Alexander

Shannyn Alexander


Shannyn AlexanderShay is a Private Personal Trainer and Fitness Instructor, specializing in TRX Training and Mixed Martial Arts. She is also a Certified Holistic Lifestyle Coach since 2005 from San Francisco. Growing up in St. Louis, team sports were an integral part of her life, Shay excelled in softball, basketball, soccer, track & field. She then made it her personal mission to empower and transform as many people to live healthy and fit lives.

She specializes in Strength & Conditioning, Powerlifting, Corrective Exercise & Rehabilitation, TRX Suspension Training, Kettle Bells, Athletic Performance, and Paleo Nutrition. Shay is a trained Muay Thai Kickboxer since 2006; also competes in obstacle racing year around, an avid rock climber, cyclist, hip hop dancer, and enjoys gourmet cooking.

Her training philosophy: “We’re all living life on a battlefield. Choose to live by training for the marathon of life. If it excites you and scares the crap out of you at the same time, it probably means you should do it. ” Her classes are full of warrior mentality, rigorous training, and positive energy. Guaranteed to make you sweat and come back for more!


Teaches: FlexTRX

What our members say

 Samantha Mathis

“After having my 1st baby, I didn't think it was possible to get my core back to the way it looked and felt pre-baby. That was until I found FLEX Studios. Along with great nutrition, the transformation was significant, and now that I am pregnant with my 2nd baby I am still @ FLEX Studios 3-4 times/wk including the Prenatal class which I love! I feel stronger and more confident that I will bounce back even more quickly this time.”

 Kelly Nash-Petit & Andrew Petit

The classes at FLEX Studios are full body strength workouts that don't slack on cardio. Each class has an upbeat flow with great instructors and fun music. I've never had the same workout twice. And it never gets easier - even after 2 years! All the instructors are great and they tailor for ability and gender. Which is how I convinced Mr. Pettit to become a regular in Jenn's Monday night Pilates class. They should call the class, 'Co-ed hundreds on steroids'.