Changes in Habitual and Active Sagittal Posture in Children and Adolescents with and without Visual Input - Implications for Diagnostic Analysis of Posture

Oliver Ludwig; Carola Mazet; Dirk Mazet; Annette Hammes; Eduard Schmitt

doi:10.7860/JCDR/2016/16647.7283

Changes in Habitual and Active Sagittal Posture in Children and Adolescents with and without Visual Input - Implications for Diagnostic Analysis of Posture

J Clin Diagn Res. 2016 Feb;10(2):SC14-7. doi: 10.7860/JCDR/2016/16647.7283. Epub 2016 Feb 1.

Authors

Oliver Ludwig¹, Carola Mazet², Dirk Mazet³, Annette Hammes⁴, Eduard Schmitt⁵

Affiliations

¹ Scientific Head, AG Kid-Check, Institute of Sport Sciences, Saarland University , Saarbrücken, Germany .
² Senior Physiotherapist, AG Kid-Check, Institute of Sport Sciences, Saarland University , Saarbrücken, Germany .
³ Senior Researcher, AG Kid-Check, Institute of Sport Sciences, Saarland University , Saarbrücken, Germany .
⁴ Senior Researcher, AG Kid-Check , Endokrinologikum, Saarbrücken, Germany .
⁵ Medical Head AG Kid-Check, Klinik für Orthopädie und orthop . Chirurgie, Universitätsklinikum Homburg, Germany .

Abstract

Introduction: Poor posture in children and adolescents has a prevalence of 22-65% and is suggested to be responsible for back pain. To assess posture, photometric imaging of sagittal posture is widely used, but usually only habitual posture positions (resting position with minimal muscle activity) are analysed.

Aim: The objective of this study was 1) to investigate possible changes in posture-describing parameters in the sagittal plane, when the subjects changed from a habitual passive posture to an actively corrected posture, and 2) to investigate the changes in posture parameters when an actively corrected posture was to be maintained with closed eyes.

Materials and methods: In a group of 216 male children and adolescents (average 12.4 ± 2.5 years, range 7.0 - 17.6 years), six sagittal posture parameters (body tilt BT, trunk incline TI, posture index PI, horizontal distances between ear, shoulder and hip and the perpendicular to the ankle joint) were determined by means of photometric imaging in an habitual passive posture position, in an actively erect posture with eyes open, and in active stance with eyes closed. The change in these parameters during the transition between the posture positions was analysed statistically (dependent t-Test or Wilcoxon-Test) after Bonferroni correction (p<0.004).

Results: When moving from a habitual passive to an active posture BT, TI, PI, dEar, dShoulder, and dHip decreased significantly(p< 0.004). When the eyes were closed, only the perpendicular distances (dEar, dShoulder, and dHip) increased significantly. The parameters that describe the alignment of the trunk sections in relation to each other (BT, TI, PI), remained unchanged in both actively regulated posture positions.

Conclusion: Changes in sagittal posture parameters that occur when a habitual passive posture switches into an active posture or when an active posture is to be maintained while the eyes are closed can be used for diagnostic purposes regarding poor posture and posture regulation.

Keywords: Poor posture; Posture assessment; Posture control; Posture regulation.