Stretch Therapy and Personal Training

Unlock strength, mobility, and pain-free movement through expert-assisted stretching and personalized training.



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Increase Mobility

Increase Mobility

Unlock your body's full range of motion for better movement and performance.

Eliminate Pain

Eliminate Pain

Target discomfort and reduce pain with customized techniques and stretches.

Improve Flexibility

Improve Flexibility

Enhance your body's flexibility for smoother, more efficient movements every day.

Our Services

Feel better in your body with personalized stretch therapy designed to relieve tension, improve mobility, and prevent injury. Build strength, stability, and confidence through customized personal training tailored to your goals and lifestyle.

1-on-1 Assisted Stretch Lafayette CO

1-on-1

Assisted Stretch

25 min $60.00      |     50 min $105.00

Experience individualized attention with hands-on stretching techniques to enhance mobility, reduce tightness, and improve overall flexibility.

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Personal Training Session Lafayette CO

Personal

Training Session

30 min $60.00      |     50 min $105.00

Achieve your fitness goals with a customized personal training session, focused on strength, conditioning, and overall performance.

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Meet Caitlyn Bernier

Caitlyn Bernier is the founder and owner of FLEX Stretch Therapy in Lafayette, CO. With a degree in Kinesiology, she’s a NASM Certified Stretch and Flexibility Coach, and an ACSM Certified Personal Trainer. Caitlyn’s journey into stretch therapy began in her home state of Massachusetts, where she worked as a rehabilitation technician in a physical therapy clinic. Drawn to the one-on-one connection and the transformative power of movement, she shifted her focus to personal training and assisted stretching. When her family relocated to Colorado, Caitlyn brought her passion with her—launching FLEX to help people move better, feel better, and live pain-free. Her approach blends science, intention, and hands-on care to unlock freedom of movement for every body.

Caitlyn Bernier FLEX Stretch Therapy Lafayette CO

Live Life Pain Free

We specialize in personalized stretch therapy and training to get you moving, pain-free and strong again. You don’t have to live with discomfort. If any of these sound like you, FLEX can help.

Always Feeling Stiff or Tight

Feeling like your body just won’t loosen up.

Limited Range of Motion

Reaching, twisting, or bending feels harder than it should.


Struggling to Do What You Love

Whether that’s working out, hiking, or just keeping up with your kids.

Lingering Injuries.

Dealing with nagging weakness or past injuries that never seem to fully heal

FLEX Therapy Personal Training Lafayette CO

Real Stories, Real Results

At Flex Therapy, our clients’ success stories speak for themselves. From pain relief to improved mobility, see how our personalized approach has transformed lives—and how it can help you too!

"Highly recommend..."

My husband and myself see Caitlyn for both personal training and stretch. She's amazing! I had both knees replaced last year and the work we've done together has made me more functional than I ever could've imagined.  She customizes our time together to get maximum results. I highly recommend her!


Dawn M.

2024

"Felt so much better.."

Prior to going to Caitlyn, I had never been to stretch therapy and didn't know what I was missing! Caitlyn is easy going and knowledgeable and was able to help me stretch a little further than I can on my own in a gentle, safe way. I felt so much better after going to FLEX Stretch Therapy and am inspired to keep stretching. I can't wait to go back!

Kristin L.

2024

"Great experience..."

Caitlyn gave me a great stretch when I went in to try it out, not really knowing what to expect other than she was highly recommended. The atmosphere was serene and beautiful and her personality was soothing and reassuring. The stretch itself was a great experience, pushing the boundaries of my muscles in good ways!

Jan S.

2024