Better abs? Vary your routine and strain your core movements to make them stronger.
This Training of Men's Health Fitness Director Ebenezer Samuel, C.S.C.S. is a straightforward way to both change the angle of a classic core breaker and add a load.
"This is mechanically simple on the surface (slimming, then pushing a kettlebell up), but there is much more of a core challenge than the one under the hood," says Samuel. "Having this hull-parallel-to-ground position will give you a heavy stress test for your entire core, and you'll fight underrated anti-rotation if you go back to that position after each up step. You're testing your own sheer shoulder flexion, as this hit takes place with a closed chest, which is incredibly busy thanks to the sit-up. "
To overcome the decline of the kettlebell core, you need a descent bench and some weights. Samuel says you can either use dumbbells or kettlebells, depending on your preference. If you need a set, check out this kettlebell option from Yes4All. Just be prepared to use lighter weights than you would expect – the challenge could be harder than you think.