Compared with the curling of barbells and dumbbells, the curling of steel cables has its unique sports value. The biceps brachii muscle has two heads, and its main function is to bend the arm. When bending the arm, another muscle, the brachialis muscle, is also used as the movement of several forearm lifts, such as high tension flexion or anti-high tension flexion, and the arm tension muscle can get enough exercise. In addition, the flexor muscle, the main muscle of forearm and upper arm, also has great influence on the movement of flexor arm. The lateral bending of the arm can enhance the flexion of the brachial muscle.
First, exercise back muscles?
It varies according to the handle hanging on the lower pulley: if you use a straight handle, it is similar to the bending of an upright barbell; If you use a single handle, it is similar to one-handed dumbbell bending; If you use the beam handle, you combine some benefits of barbell and dumbbell bending. The range of exercise includes the three muscles of the arm, but the focus is on the biceps brachii. In addition, the stretcher can also lift arms and bend sideways. This rhomboid muscle is very interesting.
Its muscle fibers move in several different directions, and it can perform many different actions according to the muscle fibers it gathers. The most common trapezius exercise in the gym is carried out in the upper body, and the main job is to lift the scapula and clavicle.
Second, step on a stretcher to exercise your back muscles.
The main training movements are all kinds of shrugging. The smaller levator scapulae also helps to lift the shoulder blades. The central function of trapezius muscle is to contract scapula. All muscle fibers contract at the same time, which also contributes to the contraction of the scapula. Finally, press the scapula with the lower part of trapezius muscle. When you exercise your back muscles, you must hold your chest out. Don't relax.
This is very important in all sports if you want to keep your back healthy. If you want to exercise your back, you must strictly observe it. When doing exercise, hold your chest out and keep straight. This can maintain the natural curve of the spine. Bending the back when carrying weight is the primary cause of lower back injury, so keep the spine naturally bent during exercise.
Finally, stretch at the lowest point, squeeze at the middle point, and consider pulling the weight with the elbow. It sounds simple, but I dare say that 95% of coaches don't have enough back training activities. It's like some people are squatting instead of squatting. They want to show off their weight and don't care about doing the right thing.