How to correct knock knees?

Patient's question:

Patient Age: 12, daughter's right calf lateral curvature for 1 year

Doctor's answer:

Hello! The specific methods for correcting O-shaped legs are as follows:
(1) Stand upright with feet together, holding your knees with both hands, and perform a squatting and standing movement forward. Repeat 20~30 times.
(2) Bend forward, holding your knees with both hands, and perform circular movements to the left and right. Repeat 20~30 times.
(3) Open your feet slightly wider, bend forward, and hold your knees with both hands to perform an inward knee-to-knee pressing exercise. Hold for 10 seconds each time. Repeat 5~10 times.
(4) Stand with feet parallel. First, rotate your feet outward and inward using the heel as the axis. Then, rotate your feet outward and inward using the toes as the axis. Repeat each movement 20~30 times.
(5) Sit on a chair and try to hold a book with your calves. Hold for a certain amount of time. If you wrap your knees with a rubber band, the effect will be even more significant.