2. Butterfly machine: This is a kind of machine used by birds to clamp their chests. Mainly exercise the pectoralis major and the pectoralis major with the internal seam as the main part, and the primary users will mostly press their backs on the seat to exert force; More experienced users will back off the chair and exercise abdominal muscles at the same time.
3. Smith frame: it is a very popular equipment in the gym. It can not only do squat training, but also do bench press (upward tilt, flat plate, downward tilt), prone rowing, biceps bending and so on. Can exercise pectoralis major, quadriceps femoris, biceps femoris and back muscles. This is an important safety device for beginners.
4. Dumbbell bench press: It is often used to assist dumbbells to complete some necessary fitness actions, such as: upward inclined dumbbell bench press, downward inclined dumbbell bench press, flat dumbbell flying bird, etc. According to the different exercise movements, the exercise parts are also different.