15 Simple Yet Effective Ab Exercises You Can Do at Home

Similar to the half banana, this move adds a twist to work your obliques.

• Begin lying on the floor with your legs straight and arms out wide to the sides, making a T with your body.
• In a slow and controlled motion, sit up, lifting your right leg and twisting to bring your left hand to your right toes.
• Hold this position for a moment, pulling your abs toward your spine.
• Slowly roll down to return to the starting position. Repeat on the other side. That's one rep.