Hello, if you have round shoulders, you should strengthen the training of back muscles, such as the training of rhomboid muscles, that is, the muscles between the shoulder blades on your back. When the muscles in this part contract, the two shoulder blades will slowly close, which can effectively improve the round shoulder.

Training actions include: butterfly flying bird sitting backwards, leaning flying bird, leaning sideways, V-pole sitting rowing, V-pole pull-down and other training actions.

I hope I can help you. You can chase me if you have any questions.