Objective findings can come from multiple sources.
One of the more valued objective structural tests available to the Chiropractor is that of the standing x-ray. There are many marking systems which show if an athlete is structurally aligned and balanced. Some of the more popular markings used to show structural status are the gravity line, as seen on the lateral L-S view, dropped from the center of the body of L3, straight down. This gravity line should bisect the anterior third of the sacral base. If the line is anterior or posterior to this point, weight is being handled by parts of the spine not designed to handle the weight, and eventual problems are predictable.