Pie charts showing balance classification of traumatic brain injury (TBI) cohort (n = 48) as normal (NL) (white on the charts) or abnormal (ABNL) (black or patterns on the charts) based on comparisons with normative data. Left, small pie charts: Subject scores within 1.6 standard deviations (SD) of the normative mean were categorized as NL (white on the charts); scores >1.6 SD were categorized as ABNL (black on the charts). Notice higher percentages for Vestibular Score (VES) on the Sensory Organization Test (SOT), and maximum excursion (MXE) on the Limits of Stability (LOS) test. Right, big pie chart showing an overview: participants were grouped into one of four mutually exclusive categories, which were cited here in order of magnitude: 1) ABNL LOS and NL SOT (ABNL LOS only), 2) ABNL balance on both tests (ABNL LOS and SOT), 3) NL balance on both tests (NL LOS and SOT), and 4) ABNL SOT and NL LOS (ABNL SOT only). Notice higher percentages for LOS abnormality.