Leg Extension Crunch (with Stability Ball)

How to perform it

Step-by-step instructions

1. 01Lie on your back with the stability ball held between the feet or lower legs and the knees bent.
2. 02Place the hands lightly behind the head and press the lower back toward the floor.
3. 03Exhale and curl the ribs toward the pelvis while extending the knees and keeping the ball secure.
4. 04Stop the leg extension before the lower back arches and keep the neck relaxed.
5. 05Bend the knees and lower the shoulders under control, then repeat without dropping the ball.