Stretcher is a kind of equipment suitable for mass fitness. The advantage of using a stretcher is that biceps brachii is a muscle with two muscle heads, and its main function is to bend the arm. Another muscle, the triceps brachii, is also used when bending the arm.

However, only when doing some forearm lifting movements, such as high-position hook bending or anti-high-position hook bending, can the brachial muscles be fully exercised. In addition, the flexor brachialis, the main muscle of the upper forearm, also plays a lot of roles in arm flexion, which can be strengthened by lateral bending of the tensioner.

biceps brachii

1, double-arm stretcher bending: it can keep biceps brachii tense in the whole range of motion. There are two forms of exercise: one is the bending of a flat stretcher with two arms, which requires that the two upper arms are always parallel to the ground; The other is the bending of the standing double-arm retractor, which requires the two upper arms to cling to the side of the body, and the retractor is pulled up in front of the body, or the wire rope of the retractor is between the legs, starting from the back.

1. Bending of single-arm stretcher: It can make biceps brachii bifurcate at the muscle peak, deepen the crack, widen the convex part and make the brachial muscle more prominent. By turning the wrist to press the palm down, you can exercise any part of the biceps brachii in isolation, without exhausting any auxiliary muscles in the process of strengthening the biceps brachii alone.