Calibration charts are an essential tool for clinical gait analysis, postural analysis, and functional movement assessments. Designed to provide an optimal amount of contrast against an individual, these backgrounds allow the clinical or performance specialists to easily spot movement or postural deviations on video. Calibration charts also enable proper and consistent camera positioning, camera zoom, camera focus, and software calibration. With precisely measured grid lines (2" high, 6" across), the Sports Motion software can be set for more accurate distance measurements. Both wall mounted and mobile screen versions are available. Mobile screens are optimal for gait labs in which the treadmill is not in close proximity to a wall. Professionals can also travel with the mobile calibration charts to use away from the lab or for presentation purposes