About the company.

Our Mission

1 Million Clients Healthy & Fit by 2025!

Quantify Fitness was designed to help you objectively and realistically achieve your health and fitness goals by reaching a state of high performance, resilience, and vibrant health; where your body, mind and life are optimized and you have the energy to kick ass every day!

Quantify Fitness is the first place in Tennessee to incorporate state-of-the-art exercise equipment called ARX, the first exercise technology created that safely and perfectly accommodates any user’s strength, measuring it accurately throughout the entire range of motion while using tracking software to provide motivation and quantify progress over time. This will be the most efficient workout you have ever experienced!

Our History

Quantify Fitness opened in July 2016.

  • JULY 2016

    Our first location in Nashville, Tennessee opens!

  • SEPTEMBER 2016

    Local news station stops by to find out what this 10 minute per week workout is all about and see if it's real. Watch the News Story.

  • JANUARY 2017

    Brain Fitness (neurofeedback) is added to our one-of-a-kind list of smart gym services

  • JUNE 2017

    As the business continues to grow, we bring on more talent to prepare for big things to come

  • JULY 2017

    Our our first anniversary and plans begin to bring on additional trainers and scope out expansion opportunities

Meet our awesome team.

Bringing you the latest health and fitness science and research, the Quantify Fitness team consists of passionate and driven individuals who get excited to help people in the most effective and sustainable ways possible.

Josh Jarrett CEO (Chief Exercise Officer), Founder

Josh has supervised thousands of high intensity workouts as a National Strength & Conditioning Association Certified Personal Trainer (NSCA-CPT). He is also a Certified Bulletproof Coach, a Certified NeurOptimal Brain Trainer, and a Health, Fitness, Data and Technology Geek.

Jessica Jarrett Trainer, Co-Founder

Jessica is a teacher by trade and helps out with the day-to-day operations at the smart-gym as well as provides the most effective 10 minute workouts on the planet! You may also occasionally see our little boys taking on the arx machines!


Chris Boehner Trainer, Business Development

Chris is a long time bio-hacker and entrepreneur by trade. Before joining Quantify Fitness, Chris worked at Bulletproof Nutrition and prior to that, he worked with the founder of Bulletproof, Dave Asprey, on a healthy food start-up.
Chris has studied under the famous strength coach Mark Rippetoe and loves what you can accomplish with high-intensity exercise and adaptive resistance strength training at Quantify Fitness.


Fred Kope Developer

Jacob Tom Designer

Fred Kope Developer