What are the underlying causes of knee ligament sprain?

The knee joint is an important part of the leg. If the knee joint suffers from a disease, such as a knee ligament sprain, it will seriously affect a person's walking function. Therefore, once a knee ligament sprain is found, you need to go to the hospital for examination and treatment in time. There are many reasons why knee ligament sprains occur, such as age, gender, physique, skills, and some other reasons. Here we will introduce to you the internal causes of knee ligament sprain.

1. Age

The bones of adolescents are not yet fully developed, so their ability to resist and defend against external forces is weak. Developing bones and cartilage also appear weak compared to those in adults. The growth of the length of the bone is slower than the development of the tendons around the bone, so injuries are more likely to occur at the protrusions of the bone and the attachments of muscles and tendons. Joints are composed of bones and the surrounding joint capsules and ligaments. When ligaments are violently injured, bones and cartilage are often damaged first. Older people have reduced flexibility in the spine and joints, and their strength to maintain stability is reduced, so sports injuries are not uncommon. The most common sports injury among adolescents is fracture, followed by sprains and contusions, while in the older age group, soft tissue blunt contusions rank first, followed by fractures.

2. Gender

The average body fat content of yellow men is 13% of their body weight, while that of women is as high as 23%. Women have relatively less muscle content than men, so the incidence of sports injuries to the knee joint is higher in women than in men. In addition, female hormones are secreted cyclically. If the menstruation is disordered, it will cause low estrogen secretion, which is known to be one of the causes of fatigue fractures.

3. Physical fitness and skills

People with excessive body fat and heavy weight will have less developed muscles, so their body flexibility and endurance are correspondingly poorer, making them more susceptible to injury. Especially when resisting violence that causes trauma, heavy people are at a disadvantage. The strength ratio of the flexor to extensor muscles is a very important factor that can lead to muscle tears in many cases. Exercisers with poor technique are also more susceptible to injury.

4. Others

In the case of poor physical condition (chronic fatigue, anemia, colds, dysmenorrhea, lack of sleep, etc.), lack of keen judgment and quick and accurate protective response to unexpected events may lead to sports injuries.