Butterfly Crunch (Bodyweight)

Also known as: Butterfly Crunch (Bodyweight).

A crunch with the soles of the feet together and the knees open.

How to perform this exercise

1. Lie on back with knees opened outward and soles touching each other in a comfortable butterfly position. Hands lightly beside neck, head and shoulders resting on floor.
2. Curl shoulder blades toward pelvis without changing leg position or pulling head, then lower slowly. Do not rotate torso or force knees down.