Heart rate variability during exercise performed below and above ventilatory threshold - Cottin, F.; Medigue, C.; Lepretre, P.-M.; Papellier, Y.; Koralsztein, J. P.; Billat, V. (Book of Abstracts - 9th Annual Congress European College of Sport Science, July 3-6, 2004, Clermont-Ferrand, France, 2004)