Interval CORE Cardio for Flat, Sexy Abs- Part II: Demo

from Team Xplore
4 years ago
 
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See a 2-minute demo on how to use interval training to combine ab work and cardio to simul See a 2-minute demo on how to use interval training to combine ab work and cardio to simultaneously cut your workout time in half and get washboard abs! (more) (less)

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