Dance Videos : Denise Austin: Retro Aerobics Cardio Workout June 4, 2013, 2:30 am 1.2k Views Denise Austin: Retro Aerobics Cardio Workout Video Description Denise Austin: Retro Aerobics Cardio Workout is an upbeat, fat-burning cardio aerobics workout that is designed to kick start the metabolism and ignite your … 19 shares