Adho Mukha Savanasana is definitely what you are looking for. If you want to clean the energy of the overall body, because the downward dog is one that increases your spine, then strengthens your hands and feet, while also activates your whole body. You can go to your hands and knees and go in this posture, then lift your hips up and back, and this condition will form an inverted V-shaped with your body.