The step of stretching triceps brachii is to hold it with both hands, put it behind your head and put your elbows up. The traction muscle groups are as follows: (1) Main muscle groups: triceps brachii. The trick is not to do this stretching exercise for too long, because the blood will be confined to the shoulders. The step of holding the wall chest lacing exercise is to keep standing, extend one arm backward and parallel to the ground, put the arm on a fixed object, and then turn the shoulder and body away from the extended arm. The pulling muscle groups are as follows: (1) The main muscle groups are pectoralis major, pectoralis minor and deltoid. The touch effect is better: cycle 7 times, and the tiger's mouth opens. Repeat the whole routine twice. If you can put your hands together on your back, you can do it 7 times with your palms facing each other. It is suggested that putting your arms back to your chest is the end of an action, and it is also a sign of smooth pulse: the main point of lacing (palm against dry Kun)! In the process of lacing, there will be bone noise in the back and shoulders. The function of swallowing bait is to adjust the tone and stand at attention. When there is airflow, stand at attention with your left leg straight for 7 times, with your hands parallel to your chest and your right foot forward.