
Scissor crunches kick up a fast burn in the abs and hip flexors using a vertical scissoring leg motion. Unlike flutter kicks, butterfly kicks, or scissor kicks (so much kicking), the scissor crunch uses a much bigger leg motion similar to the blades of scissors as you use them, hence the name.
What makes the move more intense is the position of your torso. You’ll lift your upper back away from the mat, brace your stomach and maintain a slight crunch through the abs to increase core engagement and look forward rather than at the ceiling. There are several ways to make the exercise even more challenging.