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.
USA Triathlon Among USA Triathlon's constituent groups are 2,514 certified coaches, 604 certified race directors, 550 certified officials, and 1,036 certified clubs. USA Triathlon is continually creating opportunities to make triathlon accessible to new audiences. In 2012, USA Triathlon created its Splash & Dash Youth Aquathlon Series to encourage children ages 7–15 to participate in multisport. The swim-run events are set distances based on age, and focus on fun and participation rather than competition. Most events are not timed. The organization also launched a Retro Tri Series in 2013 to boost participation among beginner triathletes. In January 2014, USA Triathlon celebrated the