If you can't avoid these four misunderstandings because of your learning ability or innate conditions, you might as well not practice squats, because the loss outweighs the gain. The back is not straight, which is the main cause of lumbar injury. The straightness of the back is an important criterion for squatting, mainly to reduce the burden on the lumbar spine and transfer the weight directly to the lower limbs. If you have congenital rickets or bending, it is not recommended to squat again. If you have lumbar injury, it is not recommended to squat again. You can try to lift your legs to exercise your lower limbs, or you can use the sitting and kicking frame in the park. Knee buckle is the chief culprit of knee injury.
We always say that squatting will hurt your knees, but when you think about this kind of thing, the main function of your knees is only support. When you exert your strength, your muscles exert their strength. How could you hurt your knee? In contrast, running hurts your knees more than squatting. Knee joint injury caused by squat is mainly caused by knee internal buckle, which is a one-way joint and can only play the role of leg flexion and extension. Just like two meshing gears, once misplaced, they will wear a lot.
Therefore, when squatting, keep your knees neutral and never buckle inside. What can I do if I can't? Exercise the front leg muscles, that is, tibialis anterior. Hips can't be bent, and squatting will lead to lumbar muscle strain. The lumbar vertebra is the lumbar vertebra, and the lumbar muscles are mainly erector spinae. Erector spinae plays a role in supporting the upright and stable back. Many people have this feeling, that is, when squatting, the back is straight, how can there be backache? At that time, your back pain was mainly due to erector spinae. Erector spinae's strength is similar to deltoid muscle, belonging to a small muscle group, and generally can't bear repeated traction and heavy traction.
Therefore, squat is a back-chain training action, but if you use your toes to exert your strength when squatting, this form will change. When the center of gravity begins to move forward, the burden on the knees and waist will increase. As for the knee, it belongs to the supporting part. Too high load and poor stability. If you buckle it carelessly, you will get hurt. Needless to say, even if the waist is straight, erector spinae can't stand the high frequency. The above four misunderstandings need special attention in the process of squatting. Of course, every novice has stepped on these misunderstandings to some extent, but don't gain weight or practice too much until these misunderstandings are completely avoided.