I love training my core (the muscles around my stomach), but sit-ups and crunches can get a bit repetitive. I was worried that my core sessions were getting a bit boring and my progress was plateauing ...

Don’t quite like doing plank? Are crunches your worst enemy? You're in luck! This workout doesn’t require you to do any floor ab exercises, so you can safely erase sit-ups out of your mind too. In ...