What is O-leggedness? O-leg is a popular term for a condition where the knees, calves and even thighs cannot touch each other while standing with the feet together. The line of force on the knee joint is not in a straight line, and the weight and pressure of the O-legged runner’s body is biased toward the inner upper ankle (both the inner and outer upper ankle are part of the thigh bone of the knee joint) and the inner tibial plateau (the upper joint surface of the tibia, which is one of the components of the lower leg). Uneven forces on the medial and lateral knee joints are often related to the laxity of the medial and lateral knee joints – ligamentous imbalances may also contribute to O-leg, such as laxity of the lateral collateral ligaments and tension of the medial collateral ligaments. people with O-leg are often accompanied by other problems, such as deep knee joints (mostly in girls), joint weakness, and outgrowth of the foot. Risks for people with O-leggedness Due to abnormal force lines, people with O-leggedness are at higher risk of knee injuries compared to people with normal leg shapes. Increased medial pressure and unbalanced forces on the medial and lateral joint surfaces can easily cause excessive medial load, resulting in damage to the meniscus of the articular cartilage, patellar slippage, and force line shift causing strain on the patella, patella tip, and femoral slide; O-leg is also very likely to cause iliotibial bundle friction, which increases the flexibility and friction of the iliotibial bundle on the lateral side of the knee joint,
Easy to produce injury; running due to O-shaped leg shape, people landing force concentrated in the heel outside, after landing extremely fast outward, so that the foot inner work collapse too large and too fast, causing the tibia to spin inside too fast and too large, resulting in excessive twisting of the knee joint.
This causes the knee joint to twist excessively, resulting in a series of problems such as patella terminal disease, fatty banditis, chondromalacia patellae, meniscal strain and so on. (We often refer to running-related knee pain as running knee) Note: Risk does not necessarily mean injury. Mainly related to the history of injury, one by one, the parts of the body that have been injured are more likely to have problems, such as scar tissue and technical deformation,
Once accumulated to a certain extent, injuries can occur. Reasons for sports injuries Internal factors: whether there are abnormalities in the structure and function of the human body, including the runner’s own joint mobility, joint strength, joint stability and whether the normal function of the joints in running can play. This is reflected in whether the runner has good technique, strength, endurance, coordination, balance and stability in running. Senior runners also need to have good adaptability, such as running on different ground and slope;
Flexible acceleration, deceleration and cornering at different rationing speeds, etc. These are the basic physical qualities to complete running. If a person does not have such physical ability and training level, easy load and injury. External factors: such as the load of training, methods and recovery time, nutrition, treatment, equipment, weather and other factors outside the body. If the runner does not adapt can not withstand too large too new too sudden external stimulation, too late to recover, treatment, often easy to produce new injuries. Therefore, O-leg is only one of the internal factors that cause injury to the runner, the injury needs to be produced under the combined effect of internal and external factors. O-legged people, running will suffer from poor knee injury We found in the analysis of sports biomechanics that structural instability (such as O-legged,
X-leg, foot arch collapse, foot valgus) but not necessarily functional instability (functional instability is the unstable state presented by the joint during the movement. The structural instability is the cause of the knee injury in the clinical examination of the value of the O-leg. A runner who already suffers from knee pain with O-leg, the pain and 0-leg performance does not completely confirm that the pain is caused by O-leg. O-leg may be associated with O-leg if the runner shows excessive internal and external swaying with movement deformation, poor joint stability, poor strength, and force line coinciding with the pain point, which is significantly relieved by technical correction and adjustment. As medical personnel, coaches, runners should face the relationship between O-leg and running with a scientific attitude, many people born with 0-leg have no problem with long-term running, some people may become 0-leg due to sudden injury (such as lateral ligament injury, this may be ligament relaxation, painful lower limb muscle ligament force imbalance) caused by leg changes. Knee pain is common, but it is not necessarily due to a 0-shaped leg. If you can run normally and do not have any symptoms, you do not need to consider O-leg. The absence of pain indicates that your current body structure and running technique are relatively balanced.
Deliberate changes are likely to cause new maladjustments and injuries. If you have O-leg, for the sake of beauty and to reduce the risk of running injury, you may want to check whether the O-leg is caused by congenital development or due to acquired ligaments and movements. If it is the latter, you can correct the leg shape through long-term training (but take into account the length of time, gender, age and injury history of the O-leg).
Such as N-shaped kneeling, two knee paperclip, stretching the outer muscles to strengthen the inner muscle strength, corrective shoes (through the insole to the arch of the foot to adjust, the adjustment of the internal and external eight of the foot), and according to the structural abnormalities of the human body to correct. Remember, the correction process must strictly control the amount of running, pay attention to the changes in running techniques, and strengthen the strength and stability of the ankle, knee and hip joints,
In order to avoid new injuries during the adjustment process. Shaped legs not only affect the aesthetics, but also have a higher risk of causing knee injuries. But in the amazing human body, having an O-leg does not necessarily mean that you will suffer from knee pain.
Sports injuries are diverse, complex and overlapping, and structural abnormalities are not necessarily the determining factor. runners with O-leg should take a scientific approach to prevention one by one to strengthen lower limb strength, strengthen white me to protect the main household awareness.
It is also important to look at O-leg with a scientific concept.