The Consistency of the Magnitude of the ATNR Response in Normal Preschool Children

Clinical questions regarding the ATNR have stimulated study of the normality of its presence, frequency of its incidence and magnitude of response in normal populations of young children. This study assesses the consistency or reproducibility of electrogoniometric measurement of the ATNR response in 40 three- and five-year-old children. Sixteen repetitions included quadrupedal and supine postures, with left and right head rotations randomly sequenced. Data analysis showed no significant effect related to repetition and statistically significant reliability on the average and for any single trial. Therapists may consider the magnitude of the ATNR response a consistent, reliable measure.