What are the common sports protective gears?

　　1. Helmet

　　Mostly used by athletes such as skating, skateboarding, cycling, and rock climbing, helmets can reduce or even eliminate the impact of objects on the head to ensure safety. The shock absorption function of the helmet is divided into two types: soft protection and hard protection. Soft protection during impact reduces the force of the impact by increasing the impact distance, and all the kinetic energy of the impact is transferred to the head ； Hard protection does not increase the impact distance, but digests the kinetic energy through its own fragmentation.

　　2. Protective glasses

　　Goggles are used to protect Eye The main function of this auxiliary device is to prevent eye damage from strong light and wind and sand. Protective glasses have the characteristics of transparency, good elasticity and not easy to break.

　　3. Wrist guards

　　Mostly used by players of volleyball, basketball, badminton and other ball games. Wristbands can effectively reduce excessive flexion and extension of the wrist, especially in tennis where the ball speed is very fast. Wearing wristbands can reduce the impact on the wrist when the ball touches the ball and protect the wrist.

　　4. Waist protector

　　It is mostly used by weightlifters and throwing athletes. It is also often used by athletes in some sports when doing heavy-load strength training. The waist is the middle link of the human body. When doing heavy load strength training, it needs to be transmitted through the waist center. When the waist strength is not enough or the movements are incorrect, injuries will occur. The use of waist protectors can effectively support and fix the waist, and can effectively prevent waist sprains.

　　5. Knee pads

　　It is mostly used by people who play volleyball, basketball, badminton and other ball games, and is also often used by people who perform heavy-load sports such as weightlifting and fitness. The use of knee pads can better fix the joints, reduce the collision and wear of the joints during exercise, and can also prevent damage to the epidermis when falling during exercise.

　　6. Ankle brace

　　It is generally used by sprinters and jumpers in track and field events. Using an ankle brace can fix and protect the ankle joint, prevent ankle sprains, and prevent over-stretching of the Achilles tendon. For athletes with ankle joint injuries, it can also effectively reduce the range of joint activities, reduce pain, and speed up recovery.