Healthy housewife, fitness trainer, and core work out enthusiast Marzia Prince breaks out a series of side planks, from beginner to advanced. You only need a mat, a couple minutes, and yourself for this exercise. Start on your side and follow Marzia's lead as she explains form. Align your spine, stabilize your core, and time yourself. Kick it up a notch by adding movement to the mix. Make it even more effective by lifting your free leg as you do so. If you really want to rock your core and tone those abs, add weights to your free hand while moving and raising your leg. It will have your abs fired up quickly.
