Limits of Normality and Symmetry in Standing Back Shape and Posture: 3D Mapping and Analysis of Young Adults

Abnormalities of posture are a common cause of pain and disability. Objective measurement systems for postural evaluation are not widely accessible in the UK especially on the National Health Service. Within physiotherapy practice one of the most common methods of assessing posture and/or back shape is by visual observation which is prone to error and lacks objectivity. The study has sought to produce normative values for back shape and posture indices in young asymptomatic adults. A convenience sample of 100 Teesside University (TU) students were recruited. This study used a 3‐D Digitizer. Data was analyzed using SPSS. The acromion and the inferior scapular angle in the dorsal frontal plane differed between the right and left shoulders of the back in females. The distance between the inferior angle of the scapula and the apical thoracic vertebrae also differed. No other statistically significant differences were found in distances between key landmarks. Overall young adults are very symmetrical. Frontal plane angles showed that overall healthy young adults have relatively straight spines. The left inferior angle of the scapula in females was found to be rotated anteriorly in comparison to the right shoulder. Results will provide a normative database for clinicians who routinely assess back posture