The within-day and between-day reliability of using sacral accelerations to quantify balance performance

To investigate the between-day and within-day reliability of a sacral mounted accelerometer to quantify balance performance and different balance metrics.Experimental, cross-sectional.Laboratorial experiment.Thirty healthy volunteers.Balance tasks were double leg stance, tandem stance and single leg stance with eyes open and closed. Performance was measured by converting accelerations into path length (PL, length of the sway trace), jerk...