Reverse the move so you end up in the starting position again, then switch arms. Stir The Pot: Assume a low plank position on a stability ball. Brace your core and draw a circle with your forearms ...

We're going to do a 10-minute, total body workout using the stability ball ... Transition to a plank. We're going to do this with our elbows on the ball. We've got five more seconds rest.

Reverse directions halfway through. Repeat for 3 sets of 8-10 reps in each direction. This yoga ball abs exercise from Lucas combines the stability of a plank with the dynamic motion of a knee ...

A robust core provides stability and support for the spine ... In contrast to the traditional plank, the reverse plank emphasizes the muscles of the posterior chain, including the glutes ...

15 reverse crunches, 15 stability-ball crunches, and 24 stability-ball climbers, although my abs are burning and I'm out of breath at the end. It's a struggle holding a plank for even one minute ...