Quantify Fitness opened in July 2016. The founder and CEO (Chief Exercise Officer), Josh Jarrett, is a National Strength & Conditioning Association Certified Personal Trainer (NSCA-CPT), a Certified Bulletproof Coach, a Certified NeurOptimal Brain Trainer, and a Health, Fitness, and Technology Geek. Josh also has 20 years of experience in the insurance industry where he is responsible for sophisticated data analytics. With his extensive analytics background, Josh and his wife Jessica designed Quantify Fitness 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!


  • family_portrait 2016

    Creating Quantify Fitness has been a family effort! Josh's wife Jessica, a teacher by trade, helps with the day-to-day operations at the smart-gym as well as helps provide the most effective 10 minute workouts on the planet! you may also occasionally see our little boys taking on the arx machines!

  • kids hands painting

    “Dad, These are the hands that helped you build Quantify Fitness! We are so proud of you! We love you!” – Jake, Joey & Jackie (2016)