Dorian Yates said that shoulders make men. The shoulder usually refers to the deltoid muscle, which is not a large muscle group, but it often needs to be stimulated according to the strength of the large muscle group.

The back is closely related to the shoulder, mainly the trapezius muscle and the posterior bundle of deltoid muscle, which can be counted as two parts of the shoulder and back. The posterior bundle of deltoid muscle is very important, it is very small, but the low level will make the whole upper body look unsupported and not straight.

The trapezius muscle only needs to be exercised once a cycle, and you can shrug your shoulders when you are loaded.

The back bundle of deltoid muscle can be practiced twice in a cycle, and this part can be added when practicing back and shoulders.

It is recommended to practice your shoulders alone, and don't mix your shoulders with other parts. Some people will put your shoulder and triceps brachii on the same day, which is not suitable for them. After the shoulders are fully stimulated, the arms at the back of the neck can no longer flex. It is also difficult to bend and stretch your arms.

It is suitable for stimulating deltoid muscle with heavy compound movements, such as dumbbell shoulder pressing and barbell pressing, and then doing special movements, such as side lifting+vertical rowing or Arnold pressing (Arnold pressing is not suitable for heavy weight), and then stimulating toes and toes with giant group or descending group.