What is dumbbell neck flexion and extension?
Both sitting and standing positions are acceptable. Step on the ground with your legs apart, keeping your torso straight. Hold a dumbbell in your right hand and lift it straight up, with the palm above your head and forward. Keep your upper arms still, palms always forward, and slowly lower the dumbbells to the back of your head. Then straighten the elbow joint to restore the dumbbell to the initial position. After repeating the specified number of times, switch to another side.
Exercise effect: This is also the exercise of triceps. The difference is that the neck and back arm flexion and extension can focus on the long head of the 3 heads of the triceps. Will help to develop the triceps in an all-round way. At the same time, because the flexion and extension of the bent arm are easy to borrow force, the technical requirements for the movement are relatively high. So it must be arranged first. The neck and back arm flexion and extension can be done with a heavier weight, and can also be done with both hands, which can increase the muscle volume more effectively.
Men need masculinity, strong muscles, and a set of conventional weapons-dumbbells, which can make your dream of creating a new type of macho become a reality.The triceps are the extensor muscles of the back group of the upper arm. The function of this muscle is to extend the forearm and help adduct the upper arm. It is innervated by the radial nerve (neck 6-8). The muscles on the back of the arm. Cover the entire back of the humerus. It is composed of a long head, a lateral head, and a medial head, and the function is to extend the elbow.
