Plank and side plank are two of the most effective bodyweight moves you can do. If you're a plank fan, then you're going to love this variation. The sassy side plank targets the outer thighs, butt, arms, and abs all at once.
- Lie 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, then slowly lower the knee, completing one rep. The move is similar to the clam.
- Perform three sets of 15 to 20 repetitions on each side.