Programa de Pós-graduação em Nutrição e Saúde

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Navegando Programa de Pós-graduação em Nutrição e Saúde por Autor "Araujo, Ellen Cristina de Sousa e Silva"

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    Densidade mineral óssea em idosos: fatores associados e predição na ocorrência de fragilidade e condições de saúde
    (Universidade Federal de Goiás, 2014-03-31) Araujo, Ellen Cristina de Sousa e Silva; Pagotto, Valéria; Silveira, Erika Aparecida da; Ferreira, Carla Cristina da Conceição; Botelho, Patrícia Borges; Silveira, Erika Aparecida da
    The objectives of this study were to assess bone mineral density (BMD) and its association with sociodemographic variables, lifestyle, anthropometric and body composition; check if the BMD is predictor the occurrence of falls, fractures, osteoporosis, frailty and health conditions in the elderly by sex. This research was inserted in the Project elderly/Goiania and was presented in two articles, one cross sectional study with a sample of 132 elderly residents of Goiânia and the second resulting from a cohort follow-up of this sample after four years. Data collection occurred from the cross-sectional study in 2009, with the investigation of sociodemographic, lifestyle, health, and anthropometric examination during total body densitometry to measure BMD, bone mineral content and body fat percentage (%BF). Collecting follow-up data from the cohort was performed in 2013, with 106 elderly because there were 13 deaths, 12 losses and one refusal. The data collection for this stage was by telephone interview with collecting sociodemographic data, health status and subjective criteria of frailty. Chi-square test, t test, ANOVA, Kruskal Wallis, analysis of simple and multivariate linear regression with a significance level of 5%, the statistical tests were performed. The study was approved by the Ethics Committee. The mean BMD in men was 1.17±0.12 g/cm2 , while in women was 1.04±0.11 g/cm2 . Better conditions of education were associated with higher mean BMD in men (p <0.05). With advancing age, there was a decrease in BMD from the age group 75-79 years in women and 80 years or older in men (p <0.05). Underweight was associated with a greater reduction in BMD in both sexes (p <0.01) and normal weight was associated with lower BMD in women (p <0.001). No associations between BMD and smoking, alcohol, physical activity and %BF were found. From the following four years of the sample it was found that BMD is statistically significant predictor of reduced strength, osteoporosis said, frailty and pre-frailty in females, but this did not occur in older men. It is observed that schooling and body composition were associated with BMD as well as BMD can infer about future occurrences of fragility and strength reduction. These findings may contribute to the allowance of actions directed to the senior management of actions to promote better bone health and disease prevention community. Moreover, these results also instigates the scientific community to further investigate the influence of low BMD to age.