First of all, people who have just started fitness often have the problem of asymmetry of chest muscles. The main reason is that the muscle development of human left arm and right arm is usually different. When training the pectoral muscle, the imbalance between the left and right triceps will make the load on both sides of the pectoral muscle different, which will lead to different muscle development speed. But in the initial stage of fitness, it will gradually improve. The most important thing for you is to use a lighter load for chest muscle training, that is, a group of weights can be about 15. Make sure that the left and right arms move at the same speed, and

In fact, it is best to solve the problem of inconsistent lines on the outer edge of chest muscles. As long as you add arm flexion and extension to the usual chest muscle training, this action has a very good effect on shaping the lower edge and outer edge of the chest muscle, which will greatly increase the area of the chest muscle, so that the imbalance of the chest muscle volume will become inconspicuous.

If you want to focus on correction, the most convenient way is to practice at home, buy a spring stretcher and fix it at the end slightly higher than the head, and then do a unilateral spring stretcher to expand the chest, which is quite helpful to correct the imbalance of chest muscles. In addition, you can also use one-arm push-ups. If it is a little difficult at first, you can use the method of leaning against the wall. The above training is aimed at the weak side of the pectoral muscle.

Or you can use passive training, that is, stop all training related to chest muscles and focus on shoulders and back. 1-2 months later, the asymmetry of chest muscles will be improved to some extent (the effect varies from person to person).

The above is the exercise method I recommend to fitness enthusiasts around me (I have 4 years of fitness experience), and I hope it will help you.