Milk bottle Russian twists

If you can sit on the floor, have blankets or a cushion to sit on. 

Try a cross-legged position like sukasana. If cross-legged isn't comfortable, try virasana. If you can't sit on the floor, that's fine too. Find a chair where you can sit up straight with both your...

• Sit on the edge of a chair holding onto the front with your hands.
• Place your feet out in front of you (bent legs for easier option or straight legs to make it harder)
• Lower your elbows to a 90-degree angle before pushing back up.

• chin parallel to the floor
• shoulders even (roll your shoulders up, back, and down to help achieve this)
• neutral spine (no flexing or arching to overemphasize the curve in your lower back)
• arms at your sides with elbows straight and even
• abdominal muscles brace...