The exercises of deltoid muscle mainly include: 1, straight arm lifting sideways, the practitioner standing upright, looking forward, holding dumbbells with his arms drooping. When practicing, raise your hands straight through your side to a horizontal position. This action is mainly to develop the middle bundle muscle of deltoid muscle, generally doing 3 ~ 4 groups, each group doing 8 ~ 12 times. When practicing, the weight of dumbbells should be appropriate, and each group can only try 8 ~ 12 times. 2. The preparation for raising the straight arm horizontally is the same as above. When practicing, hold the dumbbell straight arm with both hands and lift it horizontally. After 2 ~ 3 seconds of static force, hold the dumbbell straight arm with both hands and lift it upward. This exercise can effectively develop the toe end of deltoid muscle, usually doing 3 ~ 4 groups, each group doing 8 ~ 12 times.
? ? 3. The practice of pushing back with neck width can be practiced by standing or sitting. Practitioners hold their chest out, look forward, hold the barbell wide with both hands, lift the barbell from the back of the neck along the pillow, and straighten their arms. This action can fully develop the anterior, middle and posterior deltoid muscles, generally doing 6 ~ 8 groups, each group doing 4 ~ 6 times. If you want shoulder width, just stick to the above practice methods and practice 2 ~ 3 times a week. After a period of time, you will get satisfactory results.
? Compared with leg and chest strength, shoulder strength exercise is easier to exercise. In addition to dumbbells, barbells and other commonly used equipment, you can also carry out pull-ups, push-ups and other unarmed training. There are many things that I can't remember at the moment. I talked about this before in How to Become a Fitness Instructor. I hope I can help you!