Hold the baby's ankle with both hands and straighten the baby's legs; Then let the baby's legs bend at the same time, and the knee joint is as close to the abdomen as possible. Repeat 3 times in a row.

Prone exercise

Let the baby lie prone, arms forward, and don't press under it. The mother stood in front of the baby and Doby the child with a toy. The child naturally raised his head. In order to avoid children's fatigue, they only practiced for half a minute at first, and gradually expanded to 1 time every day.

Lying prone can not only exercise neck muscles, chest muscles and back muscles, but also increase vital capacity and promote blood circulation, which is conducive to the prevention of respiratory diseases, expand children's horizons, and explore new things from different angles, which is conducive to intellectual development.

Chest expansion exercise

The baby lies on his back, the mother holds the baby's wrist, and the thumb is placed in the baby's hand for the baby to hold.

Let the baby spread his arms left and right, palms up, then cross his arms on his chest, and finally return to the starting position. Do it three times in a row.