The hip girth measurement is taken over minimal clothing, at the level of the greatest protrusion of the gluteal (buttock) muscles. The subject stands erect with their weight evenly distributed on both feet and legs slightly parted, making sure not tense the gluteal muscles. When recording, you need to make sure the tape is not too tight or too loose, is lying flat and is horizontal. It may help to have the subject stand on a box to make the measurement easier.