Pamela is a common way to lose weight. Abdominal exercise can improve the muscles of the body and convert the heat and fat of the body into muscles, so it is possible to practice vest line.

The vest line refers to the abdomen without fat, but it also has muscle lines. The abdomen is mainly composed of two parts, namely rectus abdominis and external oblique muscle, and lines will be formed between rectus abdominis and external oblique muscle.