2. The action points of the outer edge of the chest in the upright chest expansion exercise: stand upright with your knees together, and raise your hands horizontally (you can pick up some heavy objects appropriately to increase the exercise effect). Open your arms, flush with your shoulders, gradually separate, and then slowly close. An action cycle of 3-5 seconds is an appropriate action cycle, which consists of 6 groups, and each group has a 7- 12 interval of 30 seconds.
3 Push-ups exercise the lower edge of the chest (this action is actually not as good as the double-arm flexion and extension mentioned by friends upstairs, but that action is a bit too demanding for girls, or this action is suitable for girls and aggressive). This part is very important if you want to hold your chest out. Action points: find an uphill slope slightly equal to 45 (that is, feet on the ground, hands on the edge of the bed). The palm is narrow and the shoulders (it must be noted that the exercise area with the palm wider than the shoulders becomes the outer edge of the upper chest, and the part where the pectoral muscle and deltoid muscle are connected will connect the chest and shoulders together, which will not look good for boys. This has to say another problem, that is, the movement difference is very small, and the movement parts are very different. Pay attention. ) At the beginning of the movement, elbows are pressed against ribs, and 5-8 is divided into 6 groups, with an interval of 30- 1 minute.