I saw many friends say that it is difficult to sit on the lotus, so we should practice step by step and not be impatient. Here are several ways to open the knee joint, for your reference:

1. Sit on the mat, straighten your right leg, put your left foot on the heel of your right leg (just like a half lotus, one leg is straight), inhale, and grab your left knee with your left hand and pull it up; Exhale, press your hands to the ground with your knees, do it 20 times in a row, and then change your other leg.

2, the same sitting posture, the left ankle is placed at the heel of the right leg, the right leg is bent, and the right foot is flat on the floor; Inhale, lift your knees, exhale, and press your knees against the floor. Repeat three groups, 20 times in each group.

3. Put your legs and calves on the floor, put your right heel on your left knee, and keep up with your right knee on your left foot to form a triangle with your legs. You can slowly stretch forward to the maximum limit, put your head on the floor in front of you, breathe 15 times, exchange your upper and lower legs and do it again.

4. Do a pigeon pose, so that the left thigh and the left calf are at right angles as far as possible, and the knees are inclined to the ground as far as possible to balance the joints. At the same time, move the right hip forward and down, close to the ground, keep breathing for 7- 1 1 time, and change legs and do it again.

5. Lie back on the floor on the basis of 1.

I reprinted the above, but I think it makes sense. I'll look for the photos of Quan Lian myself, hoping to help you!