There are a million and one ab exercises to choose from, but if you want to carve your core and build real rotational control, bicycle crunches are a must-add to your routine. This classic floor move ...

Our core is made up of four muscle groups that are essential to everyday movements, like walking and lifting. And when people think about core strengthening, crunches are often the first thing that ...

Master the bicycle crunch from start to finish, learn the mistakes most guys make, and add variations that target every part of your core. An EMG analysis shows high activation in the rectus abdominis ...