Personal Training

Strength That Lasts Starts Here

We are more than Training

On The Brink Fitness is NOT a one-size-fits-all training facility

Every athlete moves differently. Every body has a different story. Every compensation pattern developed for a reason. Our job is to identify what the athlete's body needs, restore efficient movement, and build a stronger foundation from the inside out.

We train athletes to:

Move with purpose

Build resilience

Understand their body

Improve performance naturally

Stay healthy for the long term

Casey Lauritsen, CPT functional Fitness Trainer

Casey Lauritsen is the owner of On The Brink Fitness and a Certified Functional Fitness Trainer with a strong background in anatomy, biomechanics, and sports therapy. She began her career as a licensed massage therapist in 2006, working with professional athletes including the Tennessee Titans. Over the years, she earned national certifications in Sports & Rehabilitation Therapy and Therapeutic Training Techniques, deepening her expertise in injury prevention and recovery.

After facing multiple back surgeries and a spinal fusion that ended her massage career, Casey found a new path through personal training. What began as her own rehabilitation turned into a passion for helping others restore movement, build strength, and prevent injury.

At On The Brink Fitness, Casey works with a wide range of athletes and specializes in Functional Strength & Conditioning, Corrective Exercise, Post-Rehabilitation Training, Mobility Work, Neural Re-education, Core Stability, Injury Prevention and Performance Enhancement. Her training sessions are fully personalized — blending hands-on knowledge with a deep understanding of the body to help each client move better, feel stronger, and provide life-enhancing results.

On The Brink Fitness

Personal Training

Strength That Lasts Starts Here

Who We work WITH

MEET OUR Trainers

Casey Lauritsen, CPT functional Fitness Trainer