Are you doing planks safely? Most people are doing planks in a way that completely defeats the purpose. If your hips are sagging, your back is arched, or you are sucking your belly button in, you are not training your core. You are irritating your spine. The spine has a natural curve called lordosis. You do not want too much of it and you do not want too little. You want a neutral forty degree curve. That is the position your body is designed to stabilize from. Create that neutral shape first wh