I went to the gym to do a flat bench press and put it on my nipple. Why do I feel my hands are so tired? Have you practiced the muscles in my hands? So how to practice chest correctly?

1, preferably about 1 cm on the nipple. Pay attention to reducing borrowing and chest muscle contraction against the wind.

2. Dumbbell birds are very good at shaping the middle seam, but they will get used to the muscles after a long time and need to change. For example, the butterfly machine is also very effective.

3. All kinds of rowing actions can stimulate the back, but if you want to present a more perfect inverted triangle, the shaping of deltoid muscle and lower back can not be ignored.