Bicycle
1. Lie on your back with the roller placed lengthwise under your spine, your buttocks and shoulders resting on the roller. Place your forearms on the floor on either side of the roller to balance yourself.
2. Draw your knees up to a tabletop position, forming a 90-degree angle between your hips, thighs, and calves.
3. Keeping your back flat, lift your head, neck, and shoulders off the roller. Straighten your right leg and pull your left knee in towards your chest, keeping your head, neck, and shoulders lifted.
4. Switch legs while maintaining your balance, imitating the pedalling of a bike. Repeat fifteen times on each leg.