Muscle tone, sprint performance and force production characteristics of male sprinter - Haverinen, M.; Kyröläinen, H.; Korhonen, M.; Ylinen, J.; Häkkinen, A.; Izguierdo, M.; Kraemer, W. J.; Häkkinen, K. (12th Annual Congress of the European College of Sport Science, Jyväskylä, Finland - July 11-14th 2007, 2007)