STARTING POSITION:
Lie flat on your back with your legs extended. Place your hands on either side of your hips. Raise your feet together towards the roof.
MOVEMENT:
Place a big cushion under your right ankle. Make sure your right knee is separated from the floor. Rest the leg during the specified time required and then switch sides and repeat with other leg (if it's necessary).
TIPS: To do it in a more comfortable way, you can place another cushion under your head. Focus on slow and controlled movement.