Posture evaluation using real-time body tracking analysis

Le résumé fourni par la source

The exact position of certain segments of the human body can be easily inferred using the 3D video camera, this information can be processed by the body tracking modules to produce accurate estimates of the segments position in real-time. The present work aims to develop and apply a method for the recognition of large body joints using a body tracking device with dedicated software, without any other peripheral devices or sensors/markers applied to the patients. A number of 85 students participated in the study, who had their posture assessed from a standing position using two software designed for posture evaluation. This study focused on the assessment of postural alignment at the shoulder and hip levels. It is essential to assess the postural alignment in both the frontal and transverse planes in order to have a better perspective of the subject's posture. We found that in 58% of the subjects the right shoulder was projected forward. A mean difference of 12.32 mm was observed in people who had the right shoulder projected forward, while a mean asymmetry of 11.56 mm was observed in people who had the left shoulder projected forward. At the level of the hips, it was observed that a percentage of 56% of the subjects had the right hip projected forward, with an average difference of 6.31 mm. 3D video camera is a reliable instrument to assess transversal plane asymmetry from paired joints.

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