What is the rear deltooid?

The rear deltooid is one of the three divisions of the deltooid muscle in the shoulder. The deltooid, which forms a rounded upper part of the shoulder, is a superficial muscle lying near the skin. If it could be removed and laid flat, it would have a triangular shape, hence its name. The rear or rear deltooid is a part of the muscle found on the back of the sump. However, it has a separate origin, which results from the back limit of the shoulder blade, the bony ridge runs horizontally and slightly down through the back of the shoulder blade. When you stand with arms on the sides and palms forward, the rear deltooid runs almost completely horizontally from the upper blade through the back of the arm and can easily feel the above back of the arm, where it meets the arm.

Although it is part of one continuous muscle, the rear deltooid performs a slightly different function than the other two divisions. They are all involved in the kidnapping of the shoulder or lifting the arm laterally away from the body. Rear deltoHowever, the ID is responsible for what is known as the horizontal or transverse kidnapping of the shoulder in which the arm is raised in front of the body to the height of the shoulders brought horizontally to the side. It also expands the arm and is the primary muscle involved in the shoulder hyperextension. This means that it brings a hand that has been lifted in front of the body down to the side; Hyperextension is another shoulder expansion behind the body.

Usually the weakest and most unused part of the deltooid can be strengthened by some of several exercises. One such exercise is a return fly, which can be done using a dumbbell or machine specific for this exercise. If you want to make a dumbbell with a reverse flour, one should either lie down on the bench, or stand forward in the hips to make the back flat and the torso parallel to the floor. With a barbell in each hand and arms hanging towards the floor, the arms should be brought up and out to the height of the shoulders, keep the elbows straight and then returned to the initial position. It is recommended to do two to CTyri sets and no more than 12 reps to increase strength.