sport terje andersen
___MASK2___ is a competitive form of ice skating in which the competitors race each other in travelling a certain distance on skates . Types of ___MASK2___ are long track ___MASK2___ , short track ___MASK2___ , and marathon ___MASK2___ . In the Olympic Games , long - track ___MASK2___ is usually referred to as just " ___MASK2___ ", while short - track ___MASK2___ is known as " short track ". The ISU , the governing body of both ice sports , refers to long track as " ___MASK2___ " and short track as " short track skating ". Terje Andersen ( born 4 March 1952 ) is a former speed skater and president of the Norwegian Skating Association . Andersen was a typical middle distance skater , his best achievement being one bronze medal from the 1980 Winter Olympics of Lake Placid . Andersen participated several times in the World Sprint Championships , finishing fourth in 1981 , and sixth in 1978 . His best placing in an allround championships is a twelfth place at the World Championships of Oslo in 1975 . He represented Tønsberg TF and Holmestrand og Botne SK . He was president of the Norwegian Skating Association from 1997 to 1999 , and again in 2003 to 2007 . The Norwegian Skating Association ( NSF ) is the main skating authoritative body in Norway . It oversees ___MASK2___ , figure skating , short track ___MASK2___ on ice and more recently inline and roller skating . ___MASK26___ is a sport in which individuals , duos , or groups perform on figure skates on ice . It was the first winter sport included in the Olympics , in 1908 . The four Olympic disciplines are men ' s singles , ladies ' singles , ___MASK80___ , and ice dancing . Non - Olympic disciplines include synchronized skating and four skating . From novice through senior - level competition , skaters generally perform two programs ( short and long ) which , depending on the discipline , may include spins , jumps , moves in the field , lifts , throw jumps , death spirals , and other elements or moves . Roller skating is the traveling on surfaces with roller skates . It is a form of recreational activity as well as a ___MASK66___ , and can also be a form of transportation . Skates generally come in three basic varieties : quad roller skates , inline skates or blades and tri - skates , though some have experimented with a single - wheeled " quintessence skate " or other variations on the basic skate design . In America , this hobby was most popular , first between 1935 and the early 1960s and then in the 1970s , when polyurethane wheels were created and " Disco " oriented roller rinks were the rage and then again in the 1990s when in - line outdoor roller skating , thanks to the improvement made to inline roller skates in 1981 by Scott Olson , took hold .