Side Planks are an awesome overall strengthener! They are especially effective in building a strong core! Side Planks target your obliques and challenge your stabilizer muscles. Always make sure you alternate sides and hold them for as long as you can. As you progress, try raising your top leg and holding for even more of a challenge and added balance.
In order to lose weight, get fit, build muscle, and get those flat abs you yearn for you must challenge yourself beyond your comfort zone using a variety of different exercises. Side planks will help you accomplish your best workout and that strong core!