Start in a quadruped position, hands under the shoulders & knees under the hips, spine neutral.
Camel - Push away from the floor, tuck your tailbone & shorten your core, allowing your spine to curve upward. Pause in the top position, getting your spine to round as much as possible.
Cat - Then reverse the motion, tilting you pelvis forward, looking upward & creating an arch in your spine. Pause in this bottom position. Then return to neutral & repeat for repetitions.
Note : The goal is to mobilise the spine, you should feel any discomfort or pressure at any point. Keep the arms straight, triceps engaged.