- PrimarySecondaryTertiary
- Difficulty
- Intermediate
- Force
- Pull
- Grips
- None
- Mechanic
- Isolation
- Lie on your back, legs extended, stability ball between your feet, arms out for support.
- Engage your core, lift your legs, and rotate them side to side in a controlled motion.
- Keep your upper body stable, move slowly, and return to center before switching directions.