Feasibility and reliability of dynamic postural control measures in children in first through fifth grades.

Purpose/background: Although dynamic postural control is a prerequisite to the development of fundamental movement skills in children, few studies have examined the feasibility and reliability of assessment techniques that measure dynamic postural control in youth under 13 years of age. Therefore, the purpose of this study was to determine the feasibility and reliability of the Lower Quarter Y Balance Test (YBT-LQ) in children and to examine the reproducibility of these measures across developmental periods of childhood.

Methods: 188 subjects in first through fifth grades (age = 6.