OrangeTheory is a fitness franchise that offers group workout classes focused on high-intensity interval training (HIIT). Each session combines cardiovascular and strength training exercises, using equipment like treadmills, rowing machines, and free weights. The goal is to elevate heart rates into the "orange zone," which is believed to maximize calorie burn and improve overall fitness. Classes typically last 60 minutes and are led by certified coaches who guide participants through various workouts. OrangeTheory uses heart rate monitors to track individual performance, allowing members to see their progress in real-time. This approach aims to create a motivating and supportive environment for all fitness levels.