This makes standing crunches particularly effective for athletes, as well as anyone looking to build a stronger, more functional midsection. Movements like standing bicycle crunches, cross-body knee ...

Slow things down and get a deep core workout with this variation on the traditional bicycle crunch. It adds resistance for a bigger burn. Abs workouts are often about volume, like knocking out 50 ...

For a modified bicycle crunch, perform the move standing up. Standing up eliminates any neck or back pain you may experience while performing the move on the floor, allowing you to focus on form.

No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...