comparação entre testes de equilíbrio de campo e plataforma de força comparison between field balance tests and force platform

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ID: 254434
2012
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Abstract
Vários testes de equilíbrio têm sido utilizados para identificar o controle postural e o risco de quedas em idosos. Entretanto, não se sabe quais testes refletem mais efetivamente a capacidade em manter o equilíbrio. O objetivo deste estudo foi comparar um conjunto de testes de campo de equilíbrio (TC) com os testes de posturografia em plataforma de força (PF) e verificar se esses testes são capazes de discriminar diferenças no equilíbrio entre jovens e idosos. Participaram do estudo 21 jovens (21,7 ± 2,0 anos) e 18 idosos (69,3 ± 7,0 anos) de ambos os gêneros. Os TC foram: escala de equilíbrio de Berg (BBS), escala de equilíbrio orientado pelo desempenho, (POMA), alcance funcional (AF) e levantar e caminhar cronometrado (TUGT). As variáveis analisadas na PF foram: amplitude de deslocamento nas direções anteroposterior (AMP-AP) e médio-lateral (AMP-ML) e trajetória do centro de pressão (TRAJ-CP). Os sujeitos foram avaliados em cinco condições durante 60s cada. Uma ANOVA one-way foi aplicada para determinar diferenças nos testes de equilíbrio entre grupos (jovens x idosos). Além disso, o teste de correlação de Spearman foi aplicado para identificar a associação entre os TC e PF. Os TC foram capazes de diferenciar jovens de idosos (p < 0,05). Os testes na PF também diferenciaram os grupos, exceto na AMP-AP em duas condições. As correlações indicaram que os testes BBS (r = - 0,43 ± 0,04) e TUGT (r = 0,45 ± 0,10) se correlacionaram com maior número de variáveis da PF (p < 0,05) e devem ser preferidos quando a avaliação do equilíbrio for determinada. Outros testes são questionados quanto à sua capacidade de determinar adequadamente o equilíbrio.
Several balance tests have been used to identify postural control and the risk of falls in the elderly. However, it is not known which tests better reflect effectively the ability to maintain balance. The objective of this study was to compare a number of field tests (FT) designed to determine balance with stabilometric tests using force platforms (FP) to determine whether these tests are able to discriminate differences in balance between young and older adults. Twenty-one young (21.7±2.0 years) and 18 older adults (69.3±7.0 years) of both genders volunteered to participate in the study. The field tests were: Berg Balance Scale (BBS), Performance Oriented Mobility Assessment (POMA), Functional Reach (FR) and Timed Up and Go Test (TUGT). The variables analyzed in the FP were: center of pressure displacement in the antero-posterior (AMP-AP) and medio-lateral direction (AMP-ML) and total sway of the center of pressure (TRAJ-CP). The subjects were evaluated in five conditions of 60s each. One-way ANOVA was applied to determine differences in balance tests between groups (young x elderly). In addition, the Spearman correlation test was used to identify the correlation between FT and FP. The FTs were able to discriminate young from elderly (p < 0.05). The FP tests also discriminated groups, except for AMP-AP in two experimental conditions. The correlation coefficients indicated that the tests BBS (r =- 0:43 ± 0.04) and TUGT (r = 0.45 ± 0.10) showed the largest correlation with the FP tests (p < 0.05). Thus, these field tests should be preferred among the other balance tests. The results of the other tests are questionable since they seemed unable to discriminate the balance performance between young and elderly subjects.
Reference Key
sabchuk2012revistacomparao Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Renata Alyne Czajka Sabchuk;Paulo Cesar Barauce Bento;André Luiz Félix Rodacki
Journal research disclosure
Year 2012
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-86922012000600012
Keywords
postural control posturography

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