Muscle use during double poling evaluated by SEMG and positron emission tomography - Bojsen-Moller, J.; Losnegard, T.; Santer, S.; Kemppainen, J.; Viljanen, T.; Kalliokoski, K.; Hallén, J. (Book of Abstracts. 5th International Congress on Science and Skiing, Dec. 14 - 19, 2010, St. Christoph am Arlberg, 2010)