Triathlon fewer injuries than those who only use running as part of their exercise routine due to the incorporation of low impact swim and bike training. Triathletes spend many hours training for competitions, like other endurance event participants. There are three components that have been researched to improve endurance sports performance; aerobic capacity, lactate threshold, and economy. Injuries that are incurred from long hours of a single activity are not as common in triathlon as they are in single sport events. The cross-training effect that athletes achieve from training for one sport by doing a second activity applies to triathlon training.
International Triathlon Union Triathlon World Championships was held giving the sport of winter triathlons its own world championship. Then in 1998 the Aquathlon World Championships were inaugurated giving aquathlon its own world championship. In 2009 the Triathlon Mixed Relay World Championships was held to organise an elite level international relay. The most recently created tournament is the Cross Triathlon World Championships similar to the long distance it was created to allow the sports governing body to have a world championship instead of XTERRA Triathlon. The world championship events organised by the ITU include: International Triathlon Union The International Triathlon Union (ITU) is the