Original sentence: Athletes training through NAU have won 191 Olympic and Paralympic medals since the 1996 Games in Atlanta.It was announced in January 2009 that the Center for High Altitude Training would be closing due to budget cuts.More than 75% of all athletes and teams training with NAU return for repeat training camps.Olympic Committee designated NAU one of only nine official U.Olympic Training Sites in the states.Since 1994, NAU has hosted nearly 5,000 athletes from 40 countries in 15 different sports.The Australian rules football club Collingwood regularly use the Center for their pre-season training.The Center for High Altitude Training at Northern Arizona University offers a location to train in a fully-supported altitude environment (7,000ft / 2100m).The U