Swelling and bruising of the medial knee joint and severe localized pain are the more common knee injuries, often troubling us in sports, and prevention is most important for sports enthusiasts. Here’s a little bit about this issue. 1, warm-up exercises can not be missing: warm-up exercises can help to raise body temperature, muscle deep blood circulation increases, enhance joint flexibility, to a large extent can reduce the chances of knee injuries (and of course all sports injuries). 2, sports environment to pick a good: a safe environment is very important to prevent injuries. For soccer, basketball and other high-risk sports, wet venues should be avoided after the rain, and slippery feet can be very dangerous for the knee joint when turning to power 3, finishing exercises do not forget: this is often ignored by many sports fans. At the end of the exercise finishing and relaxation activities can let the body temperature, heart rate and other recovery to normal levels, effectively reduce muscle and joint fatigue and soreness after exercise, can also play a role in preventing injuries. 4, key parts focus on prevention: for the body, protection is naturally necessary. For sports, protection is divided into two kinds: their own protection and external protection. The so-called own protection, that is, we need to train these key parts stronger to protect their bodies, then in the knee joint, we strengthen some quadriceps exercise, improve the strength of the muscles around the knee joint, to prevent knee injuries is naturally beneficial. At the same time, it would be good to use some protective gear to protect.