%0 Journal Article %T ¦Â2 agonists in athletes. An ergogenic aid? = ¦Â2 agonistas en deportistas. Una ayuda ergog¨¦nica? %A Ospina Uribe %A Carlos Fernando %J Iatreia %D 2013 %I Universidad de Antioquia %X Asthma is a chronic disorder of the airways with bronchial hyperresponsiveness and bronchoconstriction. Exercise can trigger asthma symptoms; this condition is known as exerciseinduced bronchospasm (EIB). Asthma is common in Olympic athletes who therefore use ¦Â2 agonists to prevent and treat its episodes. These drugs are preferably supplied by inhalation. In sports, the use of ¦Â2 agonists is restricted by anti-doping regulation, arguing that these drugs have the potential to improve physical performance, which can result in a competitive advantage. ¦Â2 agonists are prohibited by the WADA (World Anti-Doping Agency), except salbutamol (maximum dose: 1.600 ¦Ìg over 24 hours) and salmeterol. Oral administration of salbutamol can induce ergogenic effects in athletes. It has been documented that when given orally ¦Â2 agonists can improve performance in endurance disciplines, increase muscle strength and improve anaerobic power. However, according to scientific evidence, inhaled ¦Â2 agonists do not have a relevant performance-enhancing effect in nonasthmatic athletes. %K Asthma %K ¦Â2 agonists %K Ergogenic aid %K Performance %K Sport %K Asma %K Ayuda Ergog¨¦nica %K ¦Â2 agonistas %K Deporte %K Rendimiento %U http://www.iatreia.udea.edu.co/index.php/iatreia/article/view/13631/12132