You'll never do crunches again after spending 10 minutes with these three kettlebell ab exercises
You don't need crunches to build a stronger core, just try these three kettlebell ab exercises designed by a functional ...
Forget 'basic' crunches — here's 3 ab exercises you need to try, according to a functional training coach
Build strong core muscles without weights, just using these three crunch variations from a functional training coach.