Sit on the ground with your feet anchored under something and your knees bent.
2. Hold a stick (You can use a barbell, Broomstick, etc.) Behind your body and twist your torso to the sides as much as you can by flexing your obliques.
3. Slowly comeback and twist your torso to the other side.
Doable at:
Muscle group/groups:
Working muscle/muscles:
