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Balance assessment in healthy children and adolescents aged 6–18 years based on six tests collected on AMTI AccuSway force platform

Graff Krzysztof, Szczerbik Ewa

Acta of Bioengineering and Biomechanics

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2020

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Vol. 22, no. 2

121--130

EN

Purpose: The aim of the study was to compare the results of six balance tests collected on AMTI AccuSway Plus ACS force platform between healthy female and male children and adolescents. We also searched for possible correlation of the balance measures with subjects’ age. Methods: 228 healthy 6- to 18-year-old subjects (111 boys and 117 girls) participated in the study. Six balance tests were performed with the use of AMTI AccuSway Plus ACS platform: quiet standing for 30s, maximal voluntary sways of the body in the sagittal plane (anterior-posterior – AP test) for 30 s, and in the frontal plane (left-right – ML test) for 30s. All tests were performed in two conditions: eyes open and eyes closed. Results: During quiet standing with eyes open, most balance measures were lower in girls ( p < 0.05). In AP and ML tests with eyes open, a few balance parameters were different between boys and girls ( p < 0.05). In quiet standing, AP and ML tests with eyes closed, there were no between-gender differences ( p > 0.05). In quiet standing with eyes open and closed most balance parameters were negatively correlated with age ( p < 0.05). Conclusions: Quiet standing postural sway characteristics depended on gender under normal visual conditions and it was similar in boys and girls under visual deprivation conditions. The vision was differently used by females and males in balance tasks. Static postural stability improved with age regardless of visual conditions.

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Absolute and relative reliability of several measures of static postural stability calculated using a GYKO inertial sensor system

Jaworski Janusz, Ambroży Tadeusz, Lech Grzegorz, Spieszny Michał, Bujas Przemysław, Żak Michał, Chwała Wiesław

Acta of Bioengineering and Biomechanics

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2020

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Vol. 22, no. 2

93--99

EN

The aim of this study was to analyse absolute and relative reliability of a number of postural static stability measures obtained from a GYKO inertial sensor system in young adults. Methods: The study examined 29 healthy non-athlete young adults. A test was performed for 30 s while standing on one foot, without moving, with eyes open and arms relaxed along the sides of the body. The examinations were performed twice, with a one-week interval. Relative reliability was measured using the intraclass correlation coefficient (ICC) and the 95% confidence interval (95% CI), whereas the absolute reliability was evaluated based on the standard error of measurement (SEM) and the minimal detectable change (MDC). Results: The results of this study showed moderate to good relative reliability scores for all the postural stability measures, with ICC values ranging from 0.62 to 0.70. For most of the analysed variables, SEM% ranged from ca. 10 to 14%. Relatively high SEM% values were obtained only for two variables (Area, Convex Hull Area). Conclusions: The low costs of GYKO inertial sensor systems, the fast and easy installation, the mobility and high reliability of the measurement of postural stability show that it can be effective alternative to stabilographic platforms.

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Pomiędzy architekturą wczoraj a dziś. Detal jako łącznik i wyznacznik tożsamości miejsca. Materiały architektoniczne w kształtowaniu detalu XXI w.

Berbesz A. M.

Czasopismo Techniczne. Architektura

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2012

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R. 109, z. 5-A/2

33--37

PL

Struktura i materiał. Estetyka i technika. Połączenia tych pojęć składają się na rozumienie detalu XXI w. Architekt tworząc obiekt będący pośrednikiem między człowiekiem, a środowiskiem, wnętrzem i zewnętrzem, operuje detalem w taki subtelny sposób, by stał się łącznikiem. Spoiwem, rozumianym jako dialog pomiędzy tym co wczoraj a tym co dziś.

EN

Structure and material. Aesthetics and Technology. Combination of these concepts constitute the understanding of the detail in the XXI century. Architect during the creation of the object that is an intermediary between man and environment operates the detail in such a subtle way to become a link. The link which is understood as a dialogue between what is yesterday and today.

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Efektywność nauczania balansu na wózku inwalidzkim w zależności od ustawienia punktu mocowania osi tylnych kół w poziomie - założenia pracy magisterskiej

Kapek A.

Aktualne Problemy Biomechaniki

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2007

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z. 1

101--104

PL

Celem pracy jest przedstawienie założeń teoretycznych pracy magisterskiej, której zadaniem jest odpowiedź na pytanie: czy zmiana punktu mocowania osi tylnych kół wózka - a co za tym idzie, zmiana rozkładu mas pomiędzy tylnymi i przednimi kołami - wpłynie na efektywność nauczania balansu u młodych i sprawnych fizycznie osób, które nie jeździły nigdy na wózku inwalidzkim. Opracowano wskaźnik efektywności nauczania balansu, mający w sposób zobiektywizowany wykazać, czy istnieją różnice w nauczaniu balansu przy różnej konfiguracji ustawień wózka.