Why not use an ab wheel to work muscles harder during planks? It's a good way to change things up and the variation challenges balance and stability, activating muscle groups all over the body.

Roll up, roll up ...

Which ab wheels are best? Often considered a difficult part of the body to exercise and define, abdominal work can be tedious. Yet, the results are rewarding. If you want to strengthen your muscles ...

What is an ab roller? An ab roller, or ab wheel, is an effective and efficient way to strengthen your core and tone the abdominal muscles by rolling yourself out into a plank and back. 'The ab roller ...