+**F45** is a global [Fitness](/wiki/Fitness) franchise specializing in [High-intensity interval training](/wiki/HIIT) (HIIT). It combines functional full-body movements with group-based workouts, often guided by [Personal trainer](/wiki/Trainer)s, across a network of studios. The name signifies "Functional 45," referencing its focus on functional training within 45-minute sessions.
+## See also
+- [Exercise](/wiki/Exercise)
+- [Group fitness](/wiki/Group_fitness)
+- [Franchise](/wiki/Franchise)