Bodybuilding, which is also known as calisthenics, is a sport whose purpose is to strengthen different muscles of the body and achieve fitness through the use of various weights such as barbells, dumbbells, etc. The sport of bodybuilding has five world federations, the oldest and most prestigious of which is the International Federation of Bodybuilding and Fitness (IFBB), which organizes the Mr. Olympia competition, which is the most important bodybuilding event in the world, under the supervision of this federation.
