3. 30-60-90
This pose will help you give you toned and firm abs. When done regularly, it can also make your legs leaner and stronger. Lie on a firm surface with your hands under your head and your legs together. Next, slowly pull up your legs to an angle of 30 degrees without bending them. Strain your abdominal muscles, but don’t bend at the waist. Breathe deeply three times while in this position. Gradually increase the angle to 60 degrees. Stay like this, breathe deeply three more times, and then slowly increase the angle again to 90 degrees. Remain in this position. You can repeat this backward.