Starting posture: hang two handles on the high pulleys on both sides, with people standing in the middle, holding one pulley in each hand, palms facing up, and arms extending out to the pulleys on both sides, parallel to the ground.
Action: Bend the elbow, and pull the handles on both sides to the head with a steady action, keeping the upper arm stable and palms up; When the biceps contract to the maximum, try to pull to the middle.
The biceps brachii of the puller:
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.
2. Bending of single-arm stretcher: It can make biceps brachii bifurcate on 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.
Refer to the above? Baidu encyclopedia-tension device