A fitness boot camp is a type of group physical training program conducted by gyms, personal trainers, and former military personnel. These programs are designed to build strength and fitness through a variety of intense group intervals over a 1-hour period of time.
Originally popular in the US, they were brought over to the UK in 1999 and have been growing in popularity ever since.
Boot Camp training often commences with dynamic stretching and running, followed by a wide variety of interval training, including lifting weights/objects, pulling rubber TRX straps, pushups/situps, plyometrics, and various types of intense explosive routines. Sessions usually finish with yoga stretching. Many other exercises using weights and/or body weight, similar to CrossFit routines, are used to lose body fat, increase cardiovascular efficiency, increase strength, and help people get into a routine of regular exercise.