The aim of the study was to assess the relationship between erector spinae electromyographic frequency (SEMG) and the location, direction and number of spinal curvatures in children with scoliotic changes. Methods: Analysis comprised 103 (42,21%) children with scoliosis and 141 (57.79%) with scoliotic posture. Body posture and the spine were examined using the Diers formetric III 4D optoelectronic method. Electromyographic analysis was performed using a 14-channel Noraxon TeleMyo DTS apparatus. Results: In girls, the highest mean SEMG frequency of the erector spinae, calculated from 16 measurements, occurred in the case of scoliotic posture (Mean = 73.69 Hz), while in boys, the greatest values were noted for scoliosis (Mean = 79.75 Hz). There was a significant correlation between erector spinae SEMG frequency and curvature location, both in the scoliosis group (p = 0.003) and in the group with scoliotic posture (p = 0.04). There was also a significant correlation between SEMG frequency of the erector spinae and direction of the curvature, both in the scoliosis (p = 0.01) and scoliotic posture groups (p = 0.04), as well as between the erector spinae SEMG frequency and the number of spinal curvatures (scoliosis group: p = 0.03; scoliotic posture group: p = 0.03). Conclusion:The study is of applicative value and fills the gap in research on erector spinae SEMG frequency of in low-grade scoliosis among small children. Our research can also be used in research on the etiology and progression scoliosis. Visible disturbances in the erector spinae SEMG frequency (activity and tension) contribute to the development of curvature and testify to the fact that these changes are the primary cause of idiopathic scoliosis. Scoliosis is merely a symptom, an external expression of CNS dysfunction that is not fully recognised. It is also visible on the SEMG record of postural muscles. Our objective is to contribute to creating a future model record for SEMG of the postural muscles, characteristic for children with scoliosis. Then, based on electromyographic examination, it will be possible to identify initial symptoms of scoliosis and start preventive rehabilitation before irreversible bone changes occur.
The aim of the study was to analyze the relationship between the angle of spinal curvature and surface electromyography (SEMG) amplitude of the erector spinae in young school-children. A total of 251 children aged 7–8 participated in the study. The analysis involved 103 (41%) children with scoliosis, 141 (56.17%) with scoliotic posture, and seven (3.0%) with normal posture. Body posture was evaluated using the Diers formetric III 4D optoelectronic method. Analysis of SEMG amplitude of the erector spinae was performed with the Noraxon TeleMyo DTS apparatus. A significant correlation was found between the angle of spinal curvature and the SEMG amplitude of the erector spinae. The most important and statistically significant predictor of the SEMG amplitude and scoliosis angle in the scoliosis group was the standing position, chest segment, right side. The largest generalized SEMG amplitude of the erector spinae occurred in both boys and girls with scoliosis. Impaired balance of muscle tension in the erector spinae can trigger a set of changes that create a clinical and anatomopathological image of spinal curvature.
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.
The objective of the study was evaluation of the relationships between location of scoliosis and postural reactions in girls aged 7-18. The study included 28 girls aged 7-18 with lateral curvature of the spine and scoliotic posture. Selection of the examined girls was targeted. The children were treated in the Inter-School Centre for Corrective and Compensatory Gymnastics in Starachowice. The study was conducted in June 2011. Digital Exhibeon radiograms were applied to determine the location of the curvature. Postural reactions were evaluated using the static-dynamic platform Tecnobody ST 310 Plus Stability System. The variables were verified for normality of the distribution by means of Shapiro-Wilk test. The variability of the quantitative characteristics with respect to categorial characteristics was verified by using one-way and two-way repeated measures ANOVA. In the case of significant main results or interactions, the Bonferroni test and Tukey test were applied as a post hoc analysis. The p values p<0.05 were considered statistically significant. Analysis of variance showed significant relationships between Average Forward-Backward Speed, Perimeter, Ellipse Area in open eyes test (OE), and location of the curvature. The highest amplitudes of the reactions Average Forward-Backward Speer, Perimeter, Ellipse Area in open eyes test (OE) were observed in lumbar curvatures. In examination with eyes closed (CE), a correlation was found between the location of the curvature and Forward-Backward Standard Deviation, Average Forward-Backward Speer, and Perimeter. The highest amplitudes of reactions Average Forward-Backward Speer, Perimeter, Ellipse Area in eyes closed test (CE) were noted also in lumbar curvatures. The comparative analysis of variance of postural reactions with respect to the location of the secondary curvature showed significant results only for Average Forward-Backward Speed (OE). Average Forward-Backward Speed (OE) was the highest in curvatures with thoracic location.
Introduction:The location, direction and number of spinal curvatures are typical features characterising scoliosis. Electromyographic testing of the erector spinae is used to observe the development of scoliosis. Aim of the research:To analyse the relationship between the features of scoliosis in the form of location, direction and number of spinal curvatures and surface electromyography amplitude of the erector spinae in young school children. Material and methods:The study included 103 (41%) children with scoliosis, 141 (56.17%) children with scoliotic posture and 7 (3.0%) children with correct posture. Body posture and the spine were assessed using the surface topography method. Electromyographic amplitude of the erector spinae was examined with the Noraxon TeleMyo DTS apparatus. Results and conclusions:In the group of children with scoliosis, the most common was curvature in the thoracic segment. Girls experienced left-sided curvature slightly more often, the same in the scoliosis group, and in boys, right-sided curvature prevailed. Single-curvatures were the most common. The greatest generalised amplitude of the erector spinae SEMG occurred in scoliosis in both girls and boys. A significant relationship between the location, direction and number of spinal curvatures and SEMG amplitude of the erector spinae has been demonstrated. The increase in erector spinae activity correlates with the progression of scoliosis. StreszczenieWprowadzenie: Lokalizacja, kierunek i liczba łuków skrzywienia kręgosłupa to typowe cechy charakteryzujące skoliozę. Choroba ta, z wieloma nierozwiązanymi zagadnieniami dotyczącymi etiopatogenezy oraz metod leczenia zachowawczego, należy do stale aktualnych problemów wymagających nowych poszukiwań oraz intensywnych badań. Zaburzenie aktywności i napięcia prostownika grzbietu przyczynia się do rozwoju skrzywienia i wiele świadczy o tym, że zmiany te są pierwotną przyczyną skoliozy idiopatycznej. Badania elektromiograficzne prostownika grzbietu służą do obserwacji rozwoju skoliozy. Cel pracy: Analiza związku między lokalizacją, kierunkiem i liczbą łuków skrzywienia kręgosłupa a elektromiograficzną amplitudą prostownika grzbietu u dzieci we wczesnym wieku szkolnym. Materiał i metody: Analizie poddano 103 (41%) dzieci ze skoliozą, 141 (56,17%) dzieci z postawą skoliotyczną i 7 (3,0%) dzieci z poprawną postawą. Postawę ciała i kręgosłup oceniono metodą fotogrametrii przestrzennej. Amplitudę elektromiograficzną prostownika grzbietu zbadano aparatem Noraxon TeleMyo DTS. Wyniki i wnioski: W grupie dzieci ze skoliozą najczęściej występowało skrzywienie o lokalizacji piersiowej. U dziewcząt nieznacznie częściej pojawiał się lewostronny kierunek skrzywienia, również w grupie skolioz, natomiast u chłopców prawostronny kierunek skrzywienia. Najczęściej stwierdzano skrzywienia jednołukowe. Największa uogólniona amplituda SEMG prostownika grzbietu wystąpiła w skoliozach zarówno u dziewcząt, jak i chłopców. Wykazano istotny związek między lokalizacją, kierunkiem i liczbą łuków skrzywienia kręgosłupa a a...
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