Therefore, when doing weight-bearing squats, try not to let your knees exceed your toes. If it is light weight or no load, you can try to surpass the toes, because this will stimulate the quadriceps femoris more strongly.
Many people's squatting posture is wrong, and the hip joint can't work normally or the strength is insufficient, which will cause all the strength of squatting and squatting to fall on the knee joint. This is the reason why the so-called squat hurts the knee.
Extended data:
When the barbell pad squats, the center of gravity of the human body is put back to stimulate the gluteus maximus better. The center of gravity of the human body is pressed on the palm of the hind foot, and the body squats until the thigh and femur are approximately parallel to the ground, the knees and toes are in the same direction, and the inclination angle of the upper body is always parallel to the calf.
When doing ordinary squats, the thighs can't be parallel to the ground or even deeper, or the center of gravity is unstable when squatting, and there is always a tendency to fall backwards. Stepping the barbell under your feet to form a slope can solve this problem and better complete a correct squat.
I can't squat. This may be because the muscles in the front of the calf and the ligaments in the back of the thigh are too tight, which leads to the limited muscle activity in the front of the calf and the flexion of the hip joint.