Each bone and joint in the human body is like a precision mechanical bearing that is always rolling and running. However, like machinery, bone joints are constantly worn out and eventually wear out and cannot be used due to pain.
The knee joint is the most weight-bearing joint in the human body, so many people go up and down stairs with swollen and painful knee joints, gradually growing bone spurs and wearing out the cartilage, and finally the knee joint retires early.
Knee arthritis prefers the following five types of people.
1. People over 50 years old.
Knee degeneration is as inevitable as the growth of wrinkles on the face. With age, the body continues to lose calcium, coupled with the accumulation of years of wear and tear, most older people over 50 years of age have severe wear and tear on the knee joint.
2. Post-menopausal women.
After menopause, women’s estrogen secretion decreases, resulting in lower bone mass and prone to osteoporosis. At the same time estrogen reduction after the loss of joint cartilage nutrition, gradually erosion, the cartilage surface is no longer smooth, resulting in increased friction when the knee joint activities, degeneration aggravated.
3. Fatter people.
The greater the body weight, the greater the burden on the knee joint, and the wear and tear between the joints is increased. So fatter people are prone to osteoarthritis of the knee.
4. People who exercise excessively.
Flexion and extension of the knee joint is a mechanical movement, the more it is used, the more wear and tear, and this wear and tear is irreversible. Many over-active people, such as athletes, mountain climbers, heavy laborers, knee joint wear more serious than normal.
5. People who have had injuries to the knee joint.
People who have suffered injuries to the knee joint, such as meniscal and ligament injuries, if the ligament is unstable and the meniscus is uneven, the leg will wobble when walking, accelerating wear and tear; or stimulated by inflammation, recurrent synovitis, a large amount of fluid in the joint cavity, preventing the joint cartilage from absorbing nutrients, leading to cartilage degeneration.
Several methods of prevention.
1, try to avoid physical obesity, to prevent aggravating the burden on the knee joint, once the body is overweight, we must actively lose weight and control weight.
2, pay attention to walking and labor posture, do not twist the body to walk and work. Avoid squatting for a long time, because the weight of the knee joint when squatting is 3 to 6 times its own weight, squatting at work (such as car mechanics, etc.) is best changed to a low sitting position (sitting on a small bench), sitting and standing for a long time, but also to frequently change positions to prevent the knee joint fixed a posture and excessive force.
3, do not wear high heels when walking long distances, wear thick-soled and flexible soft-soled shoes to reduce the impact on the knee joint, to avoid wear and tear on the knee joint.
4, when participating in physical exercise should be well prepared activities, gently stretch the knee joint, so that the knee joint fully active before participating in strenuous exercise. When practicing leg press, do not lift your leg too high to prevent excessive strain on the knee joint. When practicing taijiquan, do not squat too low, and do not play several sets in a row to prevent injury to the knee joint from being overburdened.
5, when riding a bicycle, to adjust the height of the seat, to sit on the seat of the two feet in the pedals, both legs can be straight or slightly bent for the appropriate, the seat is too high, too low or riding uphill when pedaling hard, the knee joint have adverse effects, should be noted.
6, the knee joint encounter cold, vasoconstriction, blood circulation becomes worse, often making the pain worse, so in cold weather should pay attention to keep warm, if necessary, wear a knee brace to prevent the knee joint from cold.
7. People with osteoarthrosis of the knee should try to walk up and down stairs, climb less, stand less, and lift less heavy objects to avoid overloading the knee joint and aggravating the condition.