Difficulty: Advanced
Start by getting down on all fours on a mat or a flat surface. Position your hands directly under your shoulders and your knees under your hips. Your back should be flat, and your core tight.
To tighten your core, gently exhale as you lift your belly button away from the floor. You can also engage your pelvic floor by pretending you were trying to hold back gas or stop the flow of urine.
Lift your knees a few inches off the ground, so your weight is supported by your hands and the balls of your feet
Hold This position for 20-30 seconds.