Classification
| Type | auxiliary |
| Mechanics | isolated |
| Direction | pull |
| Equipment | fitness ball |
| Additional Equipment | mat |
Instructions
Preparation
Lie supine on floor and place arms out to side. Fix ball between ankles. Hold knees above hips with legs flexed right-angled.Execution
Twist hips to lower legs to one side until thighs touch floor. Twist to opposite side. Repeat.Variations / Comments
Keep back and shoulders on floor throughout motion.
Starting Position 
Ending Position Muscles
| Target | Obliques |
| Synergist | Hip Flexors |
| Stabilizers | Deltoid, Posterior | Rhomboids | Trapezius, Middle | Trapezius, Lower | Hip Adductors |
Front
Rear
