Plank and side plank are two of the most effective bodyweight moves you can effect. If you're a plank fan,then you're going to appreciate this variation. The sassy side plank targets the outer thighs, butt, and arms,and abs all at once. Related Stories: The Secret to Beating Your Saddlebags For GoodLie on your left side with the knees slightly bent and your elbow underneath your shoulder. Press into your bottom forearm to lift the hips as high as you can, keeping the abs engaged.
Raise your top knee to open the thighs like butterfly wings, or then slowly lower the knee,completing one rep. The fling is similar to the clam.
Perform three sets of 15 to 20 repetitions on each side.
Source: popsugar.com