I ditched my usual ab routine for these 3 dumbbell exercises for a week

I swapped my usual ab routines for three new dumbbell exercises and tested them for one week; here's what happened to my core ...
Yahoo

No, not sit-ups — I tried this 10-minute standing dumbbell ab workout and it torched my core

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I'm a personal trainer, and these 3 moves torch your abs and build muscle using one dumbbell

You just need these three moves and a dumbbell to build your deep core and abs.

I ditched my usual ab routine for these 3 dumbbell exercises for a week — here's what happened to my core

I swapped my usual ab routines for three new dumbbell exercises and tested them for one week; here's what happened to my core.