Wyniki wyszukiwania - BazTech

1

Investigation of sitting position of paralympic wheelchair basketball players

Akinoğlu Bihter, Paköz Büşra, Kocahan Tuğba

Acta of Bioengineering and Biomechanics

|

2021

|

Vol. 23, no. 4

43--51

EN

Purpose: The aim of this study was to examine the sitting position (posture) of wheelchair basketball (WB) players who cannot walk and can walk in daily life and to compare them with the able-bodied sedentary individuals. Methods: A total of 22 male individuals, including six WB players who could not walk in daily life, eight WB players who walked in daily life, and eight able-bodied sedentary individuals (control group) were included in the study. Posture analysis of individuals was evaluated using rastersterographic system DIERS formetric 4D device. Kruskal–Wallis test was used to compare the data obtained during posture analysis. The Mann–Whitney U-test was used to determine which group caused the difference in the data determined to be different. Statistical significance level was taken as P < 0.05. Results: Trunk-length, sacrum-width, sagittal and coronal imbalance, trunk-torsion, pelvic-obliqueness, pelvic-torsion, pelvic-inclination and fleche-cervicale were found to be values similar in the three groups (P > 0.05). It was determined that the lumbar lordosis and thoracic kyphosis angles were different between the groups, and the lumbar lordosis and thoracic kyphosis angles of the WB players who could not walk in daily life were higher than those of the WB players who walked in daily life and the control group (P < 0.05). Conclusions: Based on the results of our study, we suggest evaluating the sitting postures of WB players and rehabilitating WB players, especially those who cannot walk in daily life, with posture corrective exercises aimed at reducing and normalizing thoracic kyphosis.

2

Dwa lata działalności: Sektorowa Rada ds. Kompetencji. Budownictwo

Fangrat Jadwiga, Głowacz Małgorzata, Podhorecki Adam, Runkiewicz Leonard

Materiały Budowlane

|

2019

|

nr 9

77--81

3

A computational evaluation of sedentary lifestyle effects on carotid hemodynamics and atherosclerotic events incidence

Caruso M. V., Serra R., Perri P., Buffone G., Calio F. G., Franciscis S., Fragomeni G.

Acta of Bioengineering and Biomechanics

|

2017

|

Vol. 19, no. 3

43--52

EN

Purpose: Hemodynamics has a key role in the atheropathogenesis. Indeed, atherosclerotic phenomena occur in vessels characterized by complex geometry and flow pattern, like the carotid bifurcation. Moreover, the lifestyle is a significant risk factor. The aim of this study is to evaluate the hemodynamic effects due to two sedentary lifestyles -sitting and standing positions- in the carotid bifurcation in order to identify the worst condition and to investigate the atherosclerosis incidence. Methods: The computational fluid dynamics (CFD) was chosen to carry out the analysis, in which in-vivo non-invasive measurements were used as boundary conditions. Furthermore, to compare the two conditions, one patient-specific 3D model of a carotid bifurcation was reconstructed starting from computer tomography. Different mechanical indicators, correlated with atherosclerosis incidence, were calculated in addition to flow pattern and pressure distribution: the time average wall shear stress (TAWSS), the oscillatory shear index (OSI) and the relative residence time (RRT). Results: The results have highlighted that the bulb and the external carotid artery emergence are the most probable regions in which atherosclerotic events could happen. Indeed, low velocity and WSS values, high OSI and, as a consequence, areas with chaotic-swirling flow, with stasis (high RRT), occur. Moreover, the sitting position is the worst condition: considering a cardiac cycle, TAWSS is less than 17.2% and OSI and RRT are greater than 17.5% and 21.2%, respectively. Conclusions: This study suggests that if a person spends much time in the sitting position, a high risk of plaque formation and, consequently, of stenosis could happen.

4

Ocena pozycji siedzącej u niemowląt w wieku 9 miesięcy przy użyciu stanowiska podoskopowego „PodoBaby”

Adamska M., Wójtowicz D., Ostrowska B.

Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna

|

2013

|

Vol. 19, nr 1

49--54

PL

Pozycja siedząca jest wyrazem prawidłowego rozwoju dziecka i powinna być utrzymywana przez krótki czas już w 6-tym miesiącu życia, natomiast w 9-tym miesiącu powinna być przyjmowana samodzielnie i w pełni opanowana. Dzieje się tak wtedy, gdy ośrodkowy układ nerwowy rozwija się bez zakłóceń. Dzięki temu możliwe jest prawidłowe kształtowanie się mechanizmów podporowo-wyprostnych i rozkład napięcia mięśniowego, umożliwiając tym samym utrzymywanie tej pozycji przez coraz dłuższy czas. Ocena symetrii pozycji siedzącej jest ważną informacją o funkcjonowaniu ośrodkowego układu nerwowego, rozkładzie napięcia mięśniowego i jakości wzorca ruchowego dziecka. Celem pracy była ocena pozycji siedzącej w siadzie prostym niemowląt w dziewiątym miesiącu życia za pomocą stanowiska podoskopowego PodoBaby. Badaniami objęto grupę 6 dzieci w 9 miesiącu życia. Ocenie poddano ogólną powierzchnię przylegania ciała dziecka do podłoża oraz powierzchnię przylegania prawego i lewego pośladka wraz z kończynami dolnymi. Wyniki podano w wartościach procentowych. U pięcioro dzieci stwierdzono niewielką mieszcząca się w granicach normy (< 10%) asymetrię pozycji siedzącej. Tylko u jednego dziecka asymetria przekraczała 10%, co może wskazywać na zaburzenia i wymagać interwencji terapeutycznej. Urządzenie PodoBaby może wspomagać diagnostykę neurorozwojową w zakresie motoryki spontanicznej dziecka.

EN

The sitting position is an expression of the proper development of the child and it should be kept for a short time starting from the age of 6 months and in the 9 months old babies it should be taken alone and fully controlled by a child. This occurs when the nervous system develops without any problems. The correct development of both supporting and extension mechanisms, as well as the spread of muscle tension allows to maintain the sitting position for longer time. The measurement of symmetry in sitting position provides an important information about the functioning of the central nervous system, muscle tension and the quality of the child's motor pattern. The aim of the study was the evaluation of the sitting position among the 9 month old babies with the use of PodoBaby system. The study was conducted on a group of 6 children. The total area of the child's body adhesion to the surface and of the right and left buttock with the lower limbs, were evaluated. Five children had small (< 10%) asymmetry in the sitting position. Only one child’s asymmetry exceeded 10%, which may indicate disorders and require the therapeutic consultation. PodoBaby may be used for the diagnosis of the neuro-developmental motility of a child.