Associations between selected pelvic traits in habitual posture among male individuals of urban and rural environments aged 3 to 20 years

Introduction: The pelvis is part of the skeletal system. It constitutes a pelvic girdle formed by the sacrum, the coccyx bone and the two pelvic bones, the right and left one. During walking, it undergoes fluctuations of angular displacement in the frontal, sagittal and transversal planes. Material and method: The study was carried out in randomly selected kindergartens and schools of urban and rural environments, in Warmian-Masurian and Pomeranian Region among 18946 male individuals aged 3 to 20 years. Tools and subject of the study: A photogrammetric method was used to diagnose the left and right pelvic torsion angle in the transversal plane and the left and right tilt in the frontal plane. Results obtained: An overall analysis including positive and negative relationships shows that KNM- and KNM- ranges from -0.39 to -0.48, KNM- and KSM- from 0.15 to -0.08, KSM- and KSM- from 0.15 to -0.74. Conclusions: 1.The relationships between the angles of pelvic torsion in the transversal plane and tilt in the frontal plane are highly significant. 2. The interrelationships of torsion and pelvic tilt angles should be taken into account in postural error correction programs for ages 3 to 20 years.