Analysis of the relationship between body posture and postural stability in girls aged 10–12 years

Introduction
Studies assessing the influence of postural stability on body posture are very important in postural diagnosis and re-education.

Aim of the research
To analyse the relationship between body posture and postural stability.

Material and methods
The research included 146 girls aged 10–12 years from three Kielce primary schools. The Diers Formetric III 4D optoelectronic method was used to assess body posture. Postural stability was tested using the Biodex Balance System platform.

Results
Spearman’s rank correlation coefficient showed a directly proportional relationship between body posture parameters and kyphotic apex, lumbosacral point of inflection, the maximal lordosis angle and the angle of lordosis measured between tangibles of the surface of the lumbosacral point and medial point between lordotic dimples. On the side of parameters showing inversely proportional correlations, the following were found: trunk lenght measured from vertebra C7 to the medial point between lordotic dimples, trunk lenght measured from vertebra C7 to the beginning of the gluteal cleft and trunk inclination expressed in millimeters and degrees.