Submitted by Maria Creuza Silva (mariakreuza@yahoo.com.br) on 2014-07-16T20:12:35Z No. of bitstreams: 1 Dissertação Patricia Almeida Moreno. 2010.pdf: 828032 bytes, checksum: 344cf314c0512a27470bf97bf1f721c9 (MD5) / Approved for entry into archive by Maria Creuza Silva (mariakreuza@yahoo.com.br) on 2014-07-16T20:32:56Z (GMT) No. of bitstreams: 1 Dissertação Patricia Almeida Moreno. 2010.pdf: 828032 bytes, checksum: 344cf314c0512a27470bf97bf1f721c9 (MD5) / Made available in DSpace on 2014-07-16T20:32:56Z (GMT). No. of bitstreams: 1 Dissertação Patricia Almeida Moreno. 2010.pdf: 828032 bytes, checksum: 344cf314c0512a27470bf97bf1f721c9 (MD5) / Objetivo: Comparar o estado antropométrico dos idosos negros a partir do IMC obtido pela altura estimada e a altura convencional. Metodologia: Trata-se de um estudo transversal realizado em amostra populacional de negros dos distritos sanitários (DS) Barra- Rio vermelho e Liberdade, na cidade de Salvador-Ba, sendo a população final do estudo constituída por 383 indivíduos com idade ≥ 60 anos. As variáveis do estudo foram: medidas antropométricas ― peso, altura e altura do joelho, índice de massa corpórea, cor autorreferida, escolaridade, nível socioeconômico. Utilizou-se o teste t-student pareado para analisar as diferenças de médias das medidas antropométricas e o teste de qui-quadrado para analisar as diferenças de proporções dos estratos do diagnóstico nutricional à partir do IMC convencional e do IMC estimado. Para a classificação da concordância de IMC´s foram calculados os valores de Kappa. Resultados: Dos idosos estudados 60,8% estavam na faixa etária 60-69 anos, predominando o sexo feminino (69,2%). A análise de concordância do IMCE apresenta para magreza em homens e mulheres 72,0% e 83,4%, respectivamente. Os valores observados de Kappa elevados para magreza e sobrepeso em ambos os sexos indicam que o IMC cuja altura foi estimada pelo Knee-height tem boa concordância com aquele obtido a partir de medidas convencionais de peso e altura. Tanto para a altura convencional, quanto para a altura estimada houve uma redução da altura média com o aumento da idade. Conclusão: Diante dos resultados encontrados, sugere-se, então, que na prática nutricional da assistência ao idoso, seja considerada a medida do joelho na estimativa da altura para efeito de cálculo do IMC e considerando que esta técnica é de baixo custo e de fácil aplicação pode ser utilizada em ambiente ambulatorial, domiciliar ou hospitalar. / Objective: To compare the anthropometric status of elderly blacks from BMI obtained by the estimated height and conventional height. Methodology: This was a cross-sectional study in a population sample of black health districts (DS) Barra-Rio Vermelho and Liberdade in the city of Salvador-BA, and the final study population consisted of 383 individuals aged ≥ 60 years. The study variables were: anthropometric measurements - weight, height and knee height, body mass index, self-reported color, education, socioeconomic level. We used the paired Student t test to analyze differences in mean values of anthropometric measures and chi-square test to analyze differences in proportions of the strata of nutritional diagnosis from the conventional BMI and BMI estimated. For classification concordance of BMI's were calculated Kappa values. Results: Of the elderly studied 60.8% were aged 60-69 years, predominantly female (69.2%). Concordance analysis of IMCE presents for men and women were 72.0% and 83.4%, respectively. It was observed that the high Kappa values for thinness and overweight in both sexes indicate that BMI whose height was estimated by Knee-height is in good agreement with that obtained from conventional measurements of height and weight. Both for the conventional height, the estimated height to the height was reduced with increasing average age. Conclusion: Considering the results, it is suggested, then, that in practice the nutritional care of the elderly, is considered as the estimation of knee height to calculate BMI and considering that this technique is inexpensive and easy application can be used in an outpatient setting, home or hospital.

While stepping in place without vision, individuals displace linearly and rotate, without perceiving these displacements. The aims of this study were to evaluate the effect of a concomitant cognitive task and the influence of knee height on these displacements in stepping in place for 50 steps. Sixteen adults (mean age = 22 years) performed four conditions of stepping: normal knee height and high knee height with and without a cognitive task. Antero-posterior (AP) displacement was significantly smaller in dual task than in single task at normal knee height, and AP and medio-lateral displacements were significantly larger at high than at normal knee height for single and dual task. No changes in body rotation were found. These findings suggest that automaticity is involved in the control of stepping in place with a concurrent cognitive task and that one’s attentional capacity is exceeded when stepping in place with high knees and a cognitive task.