Secret: Can running really hurt our knees?

    Every time I talk about running, someone will jump out and say " running hurts the knee " , some are because of the experience of running after the injury, and there are many people who never run, but they don't dare to start trying. Is running really hurting the knee?

     Any material will wear out under long-term stress. Aluminum alloys, rebars, concrete, including bones that make up the knee, meniscus, ligaments and muscles are no exception. If it is static, long-term use of the knee will cause wear and tear, just as all materials and equipment will wear and age. But our body is not a static device, it is fixed from the first appearance. Changes will be made after being stimulated by the outside world. For example, fragile skin will give birth to old people. Bones and muscles are no exception. Long-term exercise will be more dense and muscles will be stronger. That is to say, the more exercise the knee wears, the higher the wear resistance.

     However, when the wear and impact force exceeds the skeletal muscles during running, or the increased strength exceeds the growth rate of the skeletal muscles, it will be injured. If the muscles and bones are stronger than the wear and impact, there will be no pain. Therefore, every time a knee injury, the doctor's advice is to rest, not moving; and some experienced runners recommend to continue running, there is a so-called "slow running knee injury". In fact, both statements are both reasonable and one-sided, the key is how to control the degree of wear and impact and bone, muscle growth recovery.

Knowing this basic principle, the way to avoid running your knees is to reduce wear and impact and increase the strength of your bones and muscles. Instead of not running, if you don't exercise for a long time, your muscles will be degenerated, and if you have osteoporosis or a slight impact, you will get various injuries. At the same time, lack of effective aerobic training, cardiopulmonary ability, resistance, blood pressure and other physiological functions will have various problems. Therefore, it is absolutely impossible to simply abandon running from the running, which may cause knee wear. Any exercise that is excessive or unreasonable can cause bodily harm. Choosing a scientific training method is the best solution.