of risk. The average snowboarder is a male in their early twenties, and there are three times as many men as there are women in the sport. Snowboarders have a 2.4 times greater risk of fractures than skiers, particularly in the upper extremities. Conversely, snowboarders have a lower risk of knee injuries than skiers.The injury rate for snowboarding is about four to six per thousand persons per day, which is around double the injury rate for alpine skiing. Injuries are more likely amongst beginners, especially those who do not take lessons with professional instructors. A quarter of all injuries occur to first-time riders and half of all injuries occur to those with less than a year of experience. Experienced riders are less likely to suffer injury, but the injuries that do occur tend to be more severe. Two thirds of injuries occur to the upper body and one third to the lower body. This contrasts with alpine skiing where two thirds of injuries are to the lower body. The most common types of injuries are sprains, which account for around 40% of injuries. The most common point of injury is the wrists – 40% of all snowboard injuries are to the wrists and 24% of all snowboard injuries are wrist fractures. There are around 100,000 wrist fractures worldwide among snowboarders each year. For this reason the use of wrist guards, either separate or built into gloves, is very strongly recommended. They are often compulsory in beginner's classes and their use reduces the likelihood of wrist injury by half. In addition it is important for snow boarders to learn how to fall without stopping the fall with their hand by trying to "push" the slope away, as landing a wrist which is bent at a 90 degree angle increase the chance of it breaking. Rather, landing with the arms stretched out (like a wing) and slapping the slope with the entire arm is an effective way to break a fall. This is the method used by practitioners of judo and other martial arts to break a fall when they are thrown against the floor by a training partner. The risk of head injury is two to six times greater for snowboarders than for skiers and injuries follow the pattern of being rarer, but more severe, with experienced riders. Head injuries can occur both as a consequence of a collision and when