Most gyms in Jacksonville give you access to equipment. Orangetheory gives you a target.
Every class is built around your heart rate. You wear a monitor, you see your zones on screen in real time, and a coach guides you through the effort levels that produce measurable results.
The results have been studied. Members who complete 18 Orangetheory classes over 8 weeks lose an average of 8.6% body fat and gain 2.6% lean muscle.1 It's the documented outcome of training in the specific heart rate zones the workouts are designed around.
Orangetheory classes are built around five heart rate zones. The goal is to spend 12 or more minutes in Zones 4 and 5 — orange and red — during a 60-minute session. Time in those zones triggers excess post-exercise oxygen consumption (EPOC), the physiological state where your body continues burning calories at an elevated rate for up to 36 hours after class ends. This is called the Afterburn effect.
The afterburn effect is not a feature name. It is a documented metabolic response. The workout is engineered to produce it consistently, across every coach and every studio — including the X Orangetheory locations in Jacksonville.
At most Jacksonville gyms, programming is yours to figure out. At Orangetheory, every session is coach-led, with real-time heart rate data on screen so you and your coach can both see whether you're working at the right intensity. The class does the thinking. You do the work.