Deltoid posterior bundle: Video tutorial for leaning over dumbbells side lifting

Video tutorial for leaning over dumbbells to lift sideways

　　　The exercise of the back strut of the deltoid muscle has always been a difficult problem in the training of the shoulder deltoid muscles. The feeling of the back strut is not easy to appear. Its angle range is relatively small. Once it appears, it is confused with the feeling of the upper back muscles and trapezoid muscles. I can't tell where to put force.

　　If you ignore the back strut at the beginning, it will be more difficult to find the muscles behind. Let us learn this action well through detailed video teaching and graphic explanation!

　　　The key points of the action:

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　　　　 　　　 　　 　　 　 　 　 　  　  � Wrists and wave your wrists to the side and raise them up in a large way.

　　　　The three joints of the shoulders and elbows should be stretched and contracted in a straight and curved in a straight and retracted in a straight and retracted in a relaxed and exerted in a strong manner. During the entire movement, the thoughts should be focused on the muscle groups that are contracted in a target and do not rely on force.

　　　　　Inhale when opening the arm and exhale when closing the arm.

　　　Tip: Pay attention to steady movements in dynamics, and do not use the power of swinging arms to complete the movements;

　　　Suggestions: The smaller the muscle groups, the more difficult it is to train, so we should pay special attention to these small muscle groups from the beginning. For example, if you first treat the back of the deltoid muscles as a key training, it will not be so difficult to practice. If necessary, you can use priority training to send.

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