EVALUATION OF POSTURAL BALANCE INDICATORS IN HEALTHY INDIVIDUALS.

Objective: The aim: To determine and generalize the indicators of stabilometry in healthy individuals for their further use as a control group in studies of pathologies of the musculoskeletal system.

Patients And Methods: Materials and methods: The study was conducted on a stable platform with biofeedback TYMO (Tyromotion). 30 male and female patients aged 18-25 years participated in the study.

Lumbar lordosis angle value analysis and bone tissue density in the ls section in women after 50 years old.

Objective: Introduction: The lumbar lordosis angle measured by radiology under normal conditions is between 135-1400. Any deviation from the values is associated with a change in static-dynamic loads and should translate into a change in bone tissue within the lumbar-sacral border, which results from a change in the distribution of load forces acting on individual parts of the vertebral bodies. The aim: To determine the relationship between individual variants of lordosis (hypolordosis, hyperlordosis, norm) and the general density of the spongy part of individual vertebral bodies and in selected zones of the lumbosacral zone (L5 / S1).

EVALUATION OF STRUCTURAL CHANGES IN THE AREA OF EXPERIMENTAL MANDIBULAR DEFECT WHEN APPLYING OSTEOPLASTIC MATERIALS BASED ON VARIOUS COMPONENT PERCENTAGE OF HYDROXYAPATITE AND POLYLACTIDE.

The main aim is to find out the mechanisms of reparative regeneration of bone tissue in artificially created transverse mandibular defects in rats when applying osteoplastic materials based on hydroxyapatite and polylactide with different component percentage. Experimental studies were carried out on 114 mature laboratory white male 180-220 g rats that were divided into groups: control group - animals whose bone defect was filled only with a blood clot; 1st experimental group - the entire defect volume was densely filled with a block with the ratio of component parts, hydroxyapatite 80% + polylactide 20%; 2nd experimental group was similar, but with the ratio of 50% + 50%. Morphological and morphometric research methods were carried out after the removed jaws had been decalcized in a 10% nitric acid solution.

[The content of macro- and trace elements in the cardiac muscle of adult and old rats after stressor influence].

Experiments with adults (8-10 months) and old (20-24 months) male rats have permitted establishing that the stress-induced damage caused an increase in the Ca, Na content and a decrease in the K, Mg, Cu, Zn, Fe content in the cardiac muscle of experimental animals. It is important that there are certain peculiarities in changes in the heart of adult and old rats. Changes in the heart of adult animals after the stress were similar to age changes in control old animals.

[Changes in the tetrapolar rheographic indices of adult and old rats under stress].

Experiments with adult (8-10 months) and old (24-26 months) male rats were carried out to investigate the effect of stress on the values of central hemodynamics and inotropic cardiac function--stroke volume, minute volume, stroke index, as well as output volume rate, output volume rate index and systolic frequency. It is found that stress causes more significant disturbance of inotropic function in old rats as compared with adult animals. This disorder occurs earlier in old rats.