The response of cardiac autonomic activity at rest and after an interval training session 5.600m in top class marathon swimmers: Relationship with physiological parameters - Atlaoui, D.; Hellard, P.; Hausswirth, C.; Houel, N.; Narce, J.-P.; Lacour, J.-R. (12th Annual Congress of the European College of Sport Science, Jyväskylä, Finland - July 11-14th 2007, 2007)