Regular exercise (3 · 45 min/wk) decreases plasma viscosity in sedentary obese, insulin resistant patients parallel to an improvement in fitness and a shift in substrate oxidation balance. - Dumortier,M.; Perez-Martin,A.; Pierrisnard,E.; Mercier,J.; Brun,J.F. (Clin Hemorheol Microcirc, 2002)