The so-called mermaid line refers to two upright muscle lines on both sides of the navel, which is named after its appearance resembling a vest. In order to show the vest line, we must first control the body fat content. It is best for women to have 15- 18% body fat, because too much fat will cover muscle lines. Therefore, to have a vest line, you must first do aerobic exercise for 2-3 months to lose excess body fat. You can use running, playing ball, swimming, aerobics and other methods, at the same time control diet, pay attention to carbohydrate intake, and increase the intake of high-quality protein.

When the fat is reduced, you can start the mermaid line movement. The first action is to lie flat on the mat, take the supine position, sit up and close your legs by abdominal strength, and touch your elbows and knees as a whole, with 20 in a group. The second action: sitting posture, two wrists crossing off the ground, waist turning left and right, 50 in each group. The third action: lie on your back, lift your limbs upward, make a 90-degree angle with your body, and roll your abdomen with waist strength to keep your head off the mat, with 20 in each group. The fourth action: put your head in your hands, put your toes on the ground and leave your hips off the ground, 30 in each group. This action needs strength, pay attention to safety. The fifth action: straighten your arm, point your toes on the ground, and hold it up with your straight arm. Then try to extend your right foot to the left, your left foot to the right, and cross left and right, with 30 in each group.

Every time you exercise, the above five actions are repeated 2-3 times, making a cycle. It is suggested that the exercise should be gradual, not greedy for speed, and intensive training should be carried out at one time. In addition, it is suggested to find someone to supervise or practice together to increase the motivation of continuous practice, so that you can practice a beautiful mermaid line without long persistence.