What principles should scientific exercise follow to protect the knee joint?

Lose weight. Maintain a standard weight as much as possible. Obesity is the enemy of the knee joint. In order to prevent knee pain, we must first reduce the weight of our body. Taking 3kg as an example, each step increases 6kg, and the stairs increase by 12kg. It is conceivable that obesity will put pressure on the knees. In addition, if the knee is uncomfortable, try to carry less back and lift less weights to reduce the overall weight.

Do your best. If you feel uncomfortable during exercise, stop immediately and don't force it. Pain is actually the best warning. Adequate rest is also important to protect your knees, because tired muscles can't stabilize your knees. If your knee hurts, stop resting, slow down or change your exercise. Sports injuries are usually caused by exceeding the capacity load step by step. If you want to start walking, you can start with 10 minutes every day, and then slowly increase it by 5 minutes, 10 minutes, 30 minutes. This is the safest habit. Nowadays, many people usually don't exercise. They go climbing with their family and friends on weekends. As a result, their legs and knees were sore when they came back. It's just a lack of gradual results.

Wear a pair of shoes that fit. It can not only walk comfortably, but also reduce the impact and pressure on the knees during exercise. The instep part can be closely combined with the shoes, the width and length are appropriate, and the arch radian can be correctly maintained; The weight of shoes should be light, the soles should not be too soft, but thicker; The heel can be 2 to 3 cm high, the sole is relatively flat, and it is easy to get tired when walking. The sole should be equipped with non-slip thread.

Exercise prescription without hurting knees. Walking, cycling, swimming and water sports are the best exercise prescriptions to protect your knees. Compared with jogging, walking has less pressure on the knees; Swimming and water sports are the best, because the resistance of water will not burden the knee joint; Riding a bike can not only exercise muscle strength, but also not hurt your knees, and you should pay attention to adjusting your height. When you sit down and push forward, your toes should touch the ground to avoid excessive knee movement.