What's the harm of walking on two legs? The consequences are so terrible!
4hw.org: it's an action we often don't realize. Some people say that it affects our reproductive health. Even appear arthritis, varicosity and other diseases, is the harm of Qiaoer long leg really so terrible? Let's see what the harm of Qiaoer long leg is!
Physiological changes of qiaoerlang leg
In order to analyze the health hazards of walking on two legs, we need to know what kind of physiological changes happened when walking on two legs. First of all, when one leg is put on the other leg, the pressure on the weight-bearing leg (especially the knee joint) increases, and at the same time, the pressure on the back of the upper leg also increases significantly. This will lead to the compression of joint structure, nerves, blood vessels and lymphatic vessels. Secondly, when the two legs are crossed and the muscles are in a state of continuous contraction, the heat dissipation of the legs and perineum will reduce the heat production and increase, resulting in local temperature rise.
Do two long legs affect reproductive health?
For men, the local temperature rise caused by two long legs may affect reproductive health. The most suitable temperature for sperm survival is about 35 ℃, which is lower than the internal temperature of abdominal cavity (37-38 ℃), which is also the reason why human scrotum is suspended outside the abdominal cavity. When the temperature rises to 37-38c, the motility of sperm will be greatly reduced, and even infertility may be caused. That's why people with congenital cryptorchidism, where the testicles stay in the abdominal cavity and do not descend to the scrotum, are infertile.
In addition, two long legs may cause adverse effects on the prostate, leading to prostatitis. The prostatic fluid secreted by prostate is the main component of semen. The normal secretion of prostate fluid is very important for sperm activity and insemination. If you cross your legs for a long time, the pressure in the perineum will increase, the blood flow of the prostate will be significantly affected, and the secretion function will decrease; at the same time, the temperature in the pudenda and urethra will increase, which is conducive to bacterial reproduction, retrograde infection of the prostate, resulting in prostatitis. Prostatitis is the cause of many men's loss of virility.
For women, it will not cause problems like men's, if there is no gynecological problems such as infection, it will not affect the reproductive function.
Women are more likely to suffer from gynecological diseases when they cross their legs?
At present, there is no literature report on the relationship between the incidence of gynecopathy and the incidence of qiaoerlang leg. It is speculated that the two legs will increase the temperature of vulva, promote bacterial reproduction, and thus increase the risk of gynecological diseases. However, there are many kinds of gynecological diseases, from infection, abnormal menstruation, endometriosis, endocrine diseases, female pelvic floor relaxation and swelling, to various gynecological tumors, infection is only a small part of them. Infection can be divided into bacterial infection, viral infection, fungal infection, parasitic infection and so on. It is not known whether the two legs will promote the occurrence of all these kinds. Special statistical research is needed to clarify this aspect.
Early onset of degenerative arthritis?
The so-called "degenerative arthritis" refers to the degenerative diseases of the intra-articular structure caused by long-term use, wear and other reasons. The typical disease is osteoarthritis, which generally occurs after old age.
It will not make you get osteoarthritis right away, but it will increase the pressure on the internal structure of the knee joint, and increase the nutrition barrier and wear of the cartilage. For the elderly who have different degrees of degeneration of the cartilage structure, it will increase the risk of osteoarthritis. There is some truth in the rumor that degenerative arthritis will occur early.
Could it evolve into an O-leg?
The so-called O-shaped leg refers to the deformity caused by the deflection of the lower leg at the distal end of the knee joint towards the medial side, which looks like an "O" shape. Many diseases may lead to O-shaped legs. For example, children's rickets may cause bone dysplasia, resulting in bone bending under load conditions, leg internal deviation caused by deformity healing after trauma, joint subluxation caused by laxity of lateral collateral ligament of knee joint, and narrowing of medial space of knee joint caused by osteoarthritis.
The risk of osteoarthritis in the weight-bearing leg is increased when the two legs are crossed. At the same time, because of the uneven stress of the upper leg and the inward deflection, the pressure of the medial knee joint space may be increased and the cartilage wear may be aggravated. At the same time, the 'fibular collateral ligament' located at the lateral side of the knee joint is continuously pulled to relax, which may lead to subluxation of the knee joint on the basis of the existing osteoarthritis (dislocation of the bone surface center at both ends of the knee joint & gt; 3mm), and the appearance of the leg appears to be O-shaped.
These effects on normal people can not be seen overnight, but they will surely accumulate over time, gradually damage the articular cartilage, resulting in joint alignment deformity. For the elderly, or patients with arthritis or unstable joints, the impact will be even greater.
Does appear nerve to oppress the possibility of syndrome to want rehabilitative correction?
Compared with the situations described above, it is more common to feel numbness in the lower leg after a long time of walking, or even to be unable to stand and walk for a short time. This is the so-called nerve compression syndrome, that is, the nerve tube in the leg is compressed, and the sensory and motor disorders caused by nerve conduction disorders. The short-term compression will not cause serious consequences, but if the long-term compression may cause irreversible damage to peripheral nerve function, then it needs to be treated in rehabilitation department. However, this kind of situation usually occurs in the nerve compression caused by trauma or local hematoma after operation. It is not likely to happen when you cross the two legs, unless you keep the same posture for 24 hours.
However, for those patients with diabetes mellitus and various lower extremity vascular diseases, due to the poor nutrition supply of peripheral nerve itself, there is peripheral neuropathy, and the effect of walking two legs on them is much greater than that of healthy people. Please stop walking two legs.
Do legs have varicosity more easily to perplex?
Varicosity refers to the dilation and nodulation of the superficial veins of the lower extremities due to the obstruction of blood return. All the factors that hinder the venous return of the lower extremities will increase the risk of varicose veins, such as standing for a long time, venous thrombosis, venous valve dysfunction, etc. The big saphenous vein located in the front and the medial side of the knee joint and the small saphenous vein located in the back side of the knee joint are more likely to be oppressed by the two long legs, which makes the blood flow blocked, and may indeed increase the risk of varicose veins.
For the general healthy people, as long as they don't keep their legs crossed for a long time, they are not easy to suffer from varicose veins. It should be reminded that for patients with lower extremity edema, varicose veins and other diseases, please do not cross your legs.
'keel' is also prone to abnormality?
As the saying goes, 'keel' is the spine of human body. When two long legs are crossed, due to the uneven forces on the pelvis on both sides, the spine will have compensatory left and right scoliosis to a certain extent, so as to ensure the balance of the body. At the same time, due to the forward leaning of the body, the spine will be kyphosis. After these two postures are maintained for a long time, the original normal position of the disc (fibrous cartilage tissue between the spine and vertebrae) is not evenly stressed. When the fibrocartilage ring breaks, it will make the nucleus pulposus protrude, and form the bulge or protrusion of the disc, which will compress the nerve and produce the pain of waist, buttock and lower limbs. This is the common disc herniation.
For those who have a history of disc herniation and congenital scoliosis, the effect of this improper posture will be more obvious, and it is more important to take the right sitting posture.
The correct sitting position to reduce the spine pressure is the back seat, so that the back and the horizontal plane are at a 45 degree angle, which is conducive to the back muscle relaxation and reduce the spine pressure.
Conclusion: it can increase the risk of many diseases, but it is a long-term process. Therefore, it is suggested that healthy friends should reduce the number and time of walking on their legs. For those who have related diseases such as diabetes, lumbar disc herniation, varicose veins of lower limbs and osteoarthritis, please stop sitting on their legs.