Form cues
- Sit tall
- Keep hips steady
- Rotate from the waist
- Engage core
Exercise
Waist, stability ball

A rotational core exercise performed while seated on a stability ball to target the obliques.
Target: obliques. Also works: rectus abdominis, hip flexors.
Form cues
Common mistakes
Exhale during the twist, inhale as you return to center.
In the app, search for Seated Twist on Stability Ball and add it to a workout.