Forget the floor—this high-efficiency standing workout uses light resistance to target your upper abs, lower abs, and obliques in a fraction of the usual time.
You don't need to lie on the floor or spend hours crunching to carve out a strong, defined core. This standing ab routine sculpts your midsection through dynamic, full-body movement, training your abs ...
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Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Shutterstock While ...