Faster in syrup than in water?

Do humans swim slower in syrup than in water? Scientist Edward Cussler and his student Brian Gettelfinger proved this question in a fascinating experiment at the University of Minnesota in 2004 (or original publication). I could not find a video, but there is one with top swimmer Nathan Adrian from the Mythbuster season 7 episode 5:

“The best swimmer should have the body of a snake and the arms of a gorilla,” recommends Cussler.