From the etiology, leg deformities can be divided into structural leg deformities and functional leg deformities.
Structural leg deformity refers to:
It is usually caused by congenital or disease factors, and most of them belong to skeletal malformation.
Functional leg deformity refers to:
Bad living habits and postures are mostly caused by unbalanced muscle strength and abnormal legs. For example, cross your legs, walk inside or outside, etc. Usually, functional leg shape can't be improved by targeted training.
So how to distinguish between structural imbalance and functional imbalance?
When you stand naturally, your legs can't be together, but when you bend your knees, your legs can be together. This is a functional O-leg.
If you stand naturally, your thighs can be together, but your calves can't be together. But if you sit in a chair, your calves can get close together, which is a functional X-O leg.
In addition, you are more concerned about: if it is a functional leg deformity, how long can it be improved by physical training? It is necessary to judge the severity of O-leg according to normal knee distance and active knee distance.
Normal knee distance:
Stand naturally, with ankles together, legs and knees relaxed, and the distance between the inner knees.
Moving knee distance:
Stand naturally, with ankles together, legs and knees together forcibly, and the distance between the inner knees.
According to the size of normal knee distance and movable knee distance:
The normal knee distance is less than 3 cm, and the active knee distance is 0 degree I;
The normal knee distance is less than 3 cm, and the active knee distance exceeds 0 for degree ⅱ;
The normal knee joint distance is ⅲ between 3-5 cm;
The normal knee distance is more than 5 cm, which belongs to ⅳ degree.
In general, I and II degrees are easy to adjust, and it takes longer to improve above III degrees. As long as you keep practicing, it will be effective. If you don't want to practice and are too lazy to practice, it will definitely be ineffective.
So what did you do to your legs when you were young, so that when you grew up, your hind legs didn't slide straight and you had to wear shoes when you walked? First of all, look for reasons from adults.
These practices of adults to children will seriously damage the leg shape of children. If you are still doing this, you should stop it quickly:
1. I'm afraid my child's legs are not straight. When children are very young, I will give them leggings. In fact, overcorrection will affect the stability of joints and lead to incorrect leg shape.
2, long-term use of diapers for children, children's skin is delicate, in order to avoid friction between the legs, children's legs are easy to spread out. If you use diapers, choose soft and narrow diapers for your child and don't wear them for a long time.
3. Let children learn to walk too early when they are too young. The child's legs and joints are not stable yet, and premature weight bearing will affect the leg shape.
Some parents let their children follow the walker for a long time in order to save trouble.
5, frequent urination for a long time, leading to excessive abduction and external rotation of the legs.
These practices are affecting the normal development of children's legs! It is normal for a baby's legs to bend, but it is abnormal for a baby's legs to be straight.
When the baby is still in the mother's stomach, due to the space limitation of the uterine cavity, the limbs are bent; After birth, O-legs will last until about 2 years old; After that, it will develop into an X-shaped leg, and it will not be completely straightened until it is about 8 years old. Physical development has its natural laws. Children will choose to crawl or walk according to their physical condition. The excessive worry of some parents is actually destroying the normal development and growth of children.
Improper leg shape does not rule out acquired bad habits:
1, I like sitting for a long time, which leads to shortening of gluteal muscles, backward inclination of pelvis, abduction of hip joint and rotation of O-leg.
2, women wearing high heels for a long time, easy to cause knee hyperextension, pelvis forward, easy to cause hip rotation O-leg, or X-O-leg.
3. Female pelvis is relatively wide, gluteal muscles are slack, and it is easy to form a false hip breadth after delivery, and the pelvis leans forward, which is easy to cause X-O legs or hip pronation O-legs.
4. Male pelvis is relatively narrow, gluteal muscles are relatively strong, and it is easy to be too short. Walking with splayed feet forms an O-shaped leg, and the hips are externally rotated.
5. In addition, high arch can easily lead to hip external rotation, flat foot can easily lead to hip internal rotation, and hallux valgus can easily lead to calf abduction.
6. When the big toe walks upward, the big toe can't press down on the ground, and the force is easy to concentrate on the second half of the sole of the foot, and the calf is easy to push back, resulting in the knee overstretching and the calf swelling, forming an X-shaped leg or an O-shaped leg.
The above phenomenon is not absolute, there are many individual factors, and there will be other phenomena.
The influence of incorrect leg shape on the body;
1, the legs are not straight, and the height itself is 168CM, but it looks like 158CM. Hip breadth and gluteal muscle relaxation will occur because of incorrect leg shape. This will reduce the height of the overall image.
2. Ankle, knee and hip are unstable, and the pressure between joint surfaces is inconsistent. In walking or jumping activities, it is easy to damage joints, and then knee pain occurs. But in order to avoid pain, the body will find a balance between pelvis and spine, and then there will be more physical discomfort such as back pain, shoulder and neck pain.
3, the leg shape is not correct, the walking posture will be ugly, not swinging from side to side, or walking with a duck gait, which will affect the foot shape over time. Moreover, the incorrect foot shape and unstable sole strength will further aggravate the problem of incorrect leg shape.
The body is a whole, and one point will appear together with other problems, and other problems will aggravate the existing problems. So when we practice:
1, find a professional teacher to evaluate your leg shape and do precise exercises.
2. Only by persisting in practice and making practice a self-discipline behavior can we fundamentally improve the problem.
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