The 'My Fitness Instructor' app features real BMF instructors, who guide users through a tailored workout session, complete with video demonstrations of the exercises.

There are more than five million possible combinations of exercises, a 'share with a friend' option and the ability to measure your improvements in strength and stamina using the fitness test feature.

Major Robin Cope, managing director at BMF, said: "Our technology creates hundreds of thousands of unique workouts and at BMF, we believe you can only improve when your routine is kept fresh."

The BMF My Fitness Instructor app launches on 26 March. Details: www.bmffitnessapp.com