Introduction: The analysis of somatic features is an important part of health assessment. Body mass, height, and the size of the support surface are determinants of static mechanical stability Aim of the research: To analyse canonical correlations between somatic features and postural stability in children aged 10-12 years. Material and methods: The study included 301 children aged 10-12 years. Body composition was assessed using the method of bioelectrical impedance analysis, which consists of the evaluation of resistance to the flow of an electric current. Postural stability was evaluated using the Biodex Balance System platform. Postural stability testing was performed with both feet positioned on a stable surface, with open eyes. Results and conclusions: Measurements of somatic traits and body composition, which were compared to norms, showed that the majority of subjects had normal somatic features and body composition. All children during the postural stability test were in research Zone A, and most of them tended to lean to the right and left back (Quadrant III, IV). There were significant correlations between somatic variables and postural stability. On the somatic variables side, the largest share was in body height and muscle mass (%), and the highest shares in the postural stability variables were the total stability index, the percentage of time spent in Quadrant III, and the percentage of time spent in Quadrant IV. Body height and muscle mass (%) were most strongly correlated with variable postural stability. Streszczenie Wprowadzenie: Analiza cech somatycznych jest ważnym elementem oceny stanu zdrowia dzieci. Masa ciała, wysokość i wielkość powierzchni podparcia są wyznacznikami statycznej stabilności mechanicznej. Cel pracy: Analiza korelacji kanonicznych między cechami somatycznymi a stabilnością posturalną u dzieci w wieku 10-12 lat. Materiał i metody: Badaniami objęto 301 dzieci w wieku 10-12 lat. Skład ciała oceniono metodą impedancji bioelektrycznej, która polega na ocenie oporności przepływu prądu elektrycznego. Stabilność postawy badano za pomocą platformy Biodex Balance System. Wykonano test stabilności postawy z obiema stopami ustawionymi na stabilnym tle z otwartymi oczami. Wyniki i wnioski: Pomiary cech somatycznych i składu ciała, które porównywano z normami, wykazały, że większość badanych miała prawidłowe cechy somatyczne i skład ciała. Wszystkie dzieci w czasie testu stabilności posturalnej znajdowały się w strefie badawczej A i większość z nich miała tendencję do wychylania ciała w prawy i lewy tył (kwadrat III, IV). Stwierdzono istotne korelacje między zmiennymi somatycznymi a stabilnością posturalną. Po stronie zmiennych somatycznych największy udział miały wysokość ciała i masa mięśni (%), a po stronie zmiennych stabilności posturalnej-całkowity indeks stabilności, procent czasu przebywania w III kwadracie i procent czasu przebywania w IV kwadracie. Wysokość ciała i masa mięśni (%) były najsilniej skorelowane ze zmiennymi stabilności posturalnej.
Background:The aim of the study was to analyse the correlations between body posture parameters and postural stability in boys aged 10-12 years. Material and methods:The study involved a group of 159 boys aged 10-12 years from the Świętokrzyskie Voivodeship.Body posture was evaluated using the Diers formetric III 4D optoelectronic method, which allows photogrammetric registration of the back surface using the raster stereography process. Postural stability of the examined boys was evaluated using the Biodex Balance System balance platform.Results: Spearman's rank correlation showed a directly proportional relationship be-tween selected postural stability parameters and the inflection point ILS (mm) as well as surface rotation (rms) (°). However, on inversely proportional relationships were found be-tween length of the trunk VP-DM (mm), length of the trunk VP-SP (mm) and the pelvic in-clination (symmetry line) (°). Conclusions:The results showed that the poorer the postural stability of the subjects, the worse the quality of body posture.
The objective of the study was analysis of the relationship between body posture and balance reactions in girls and boys aged 12-15 years. The study covered 503 girls and boys aged 12-15 attending randomly selected Primary School, and Junior High School in Poland. Body posture was examined by means of spatial photogrammetry using the projection moire effect. Postural reations were tested on an R50300 Cosmogamma platform by Emildue. In the saggital plane, 297 (59.05%) correct postures and 206 (40.95%) postural defects were observed. In the frontal plane, there were only 3 (0.60%) correct postures, 238 (47.32%) scoliotic postures, 262 (52.09%) residual scoliosis, and 46 (9.15%) idiopathic scoliosis >10°. A significant relationship was observed between anterior-posterior speed with closed eyes and lateral curvature of the spine, both with defects in the saggital plane and without these defects (p=0.044). Lateral curvatures of the spine and defects in the saggital plane are accompanied by a clear increase in the anterior-posterior speed. A significant relationship was found between the mean loading point Y with open eyes and lateral curvature of the spine, both with postural defects and without these defects (p=0.043). This parameter was the highest among the defects in the saggital plane, without lateral curvature of the spine. A significant relationship was also observed between the mean sway X (p=0.009) and the mean sway Y in the test with eyes open (p=0.046), and defects in the saggital plane, both with lateral curvature of the spine and without these defects.
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. Streszczenie Wprowadzenie: Badania oceniające wpływ stabilności posturalnej na postawę ciała są bardzo istotne w diagnostyce oraz reedukacji posturalnej. Cel pracy: Analiza związków pomiędzy postawą ciała a stabilnością posturalną. Materiał i metody: Badaniami objęto 146 dziewcząt w wieku 10-12 lat z trzech kieleckich szkół podstawowych. Do oceny postawy ciała zastosowano metodę optoelektroniczną Diers Formetric III 4D. Stabilność posturalną testowano przy użyciu platformy balansowej-Biodex Balance System. Wyniki: Korelacja rang Spearmana wykazała wprost proporcjonalną zależność pomiędzy parametrami postawy ciała a szczytem kifozy, punktem przegięcia lędźwiowo-krzyżowego, maksymalnym kątem lordozy oraz kątem lordozy zmierzonym między stycznymi do powierzchni lędźwiowo-krzyżowego punktu przegięcia. Do parametrów, które wykazywały korelacje odwrotnie proporcjonalne, należały: długość tułowia zmierzona od kręgu C7 do punktu środkowego między dołkami lędźwiowymi, długość tułowia od kręgu C7 do początku szpary pośladkowej oraz nachylenie tułowia wyrażone w stopniach i milimetrach.
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