The role of knee pads
1. insulation effect: the knee part is often cold, many knee joint diseases are related to knee cold, especially in the mountains, the mountain wind is very cold and very hard, often the leg muscles feel very hot because they have been in the movement, and the knee is not hot because there is no muscle movement, when people feel the leg heat is very comfortable, in fact, the knee is cold At this time, if you are wearing knee pads, the thermal insulation effect of knee pads can be reflected.
2. braking effect: The knee joint is the joint of the upper and lower leg , the middle of the meniscus, the front of the patella, the patella is stretched by two muscles, suspended in the leg  before the junction, very easy to slide, in normal life, due to the impact of external forces, there is no strenuous exercise, so the patella in the knee can be normal small range of activities. Wearing knee pads can fix the patella in a relatively stable position to ensure that it is not easily injured.