Resumo: O envelhecimento provoca declínios físico e/ou cognitivo. Ainda, algumas conseqüências da institucionalização do idoso parecem influenciar negativamente suas esferas física e cognitiva, geralmente já prejudicadas. Porém, o exercício aeróbio pode beneficiar ambas as esferas. Assim, esta pesquisa divide-se em Estudo #1 (transversal) e Estudo #2 (longitudinal) OBJETIVO: realizar o perfil de nível de atividade física, independência funcional básica, funções executivas, memória e estado cognitivo geral de idosos moradores de instituições de longa permanência para idosos de Rio Claro-SP (Estudo #1), e analisar possíveis efeitos de um programa de Dança de Salão nestas variáveis (Estudo #2). MATERIAIS E MÉTODOS: para o Estudo #1, a amostra foi aleatória e abrangeu 89,8% da população institucionalizada. Para o Estudo #2, a amostra foi de 14 idosos no Grupo Controle e de 13 idosos no Grupo Treinamento; o treinamento foi de três sessões de Dança de Salão por semana, durante seis meses. Em ambos os estudos foi aplicada a mesma bateria de testes e questionários. Os dados foram analisados com p<0,05. No Estudo #1, foi calculada média, desvio-padrão e quartis, além do coeficiente de correlação de Pearson para nível de atividade física e independência funcional básica com as outras variáveis. No Estudo #2, utilizou-se o teste de Shapiro-Wilk para analisar a normalidade da distribuição dos dados, teste t de Student para análise de similaridade inicial entre ambos os grupos. Assim, utilizou-se ANOVA two-way, three-way e four-way, dependendo do teste, além do coeficiente de correlação de ix Pearson. RESULTADOS: Em ambos os estudos, o desempenho dos idosos foi muito abaixo do esperado. No Estudo #1, obteve-se: idade=75,3 anos; Mini- Exame do Estado Mental=11,5 pontos; Escala Geriátrica de Depressão=12,8 pontos; Questionário Baecke Modificado... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Aging causes physical and/or cognitive decline. Moreover, some consequences of older adult's institutionalization seem to exert a negative influence on their physical and cognitive spheres, which are generally are impaired. Anyhow, aerobic exercise can benefit both spheres. So, this research is divided into Study #1 (transversal) and Study #2 (longitudinal). OBJECTIVE: accomplish the profile of physical activity level, basic functional independence, executive functions, memory and general cognitive state of older adults living in the long-care homes at Rio Claro-SP (Study #1), and to analyze the possible effects of a Ballroom Dancing program in those variables (Study #2). MATERIAL AND METHODS: the sample selected in the framework of the Study#1 was randomized and achieved 89,8% of institutionalized population. With regard to Study #2, the sample included 14 older adults in the control group and 13 older adults in the training group. The training consisted by three sessions of Ballroom Dancing a week, during six months. The same battery of tests and questionnaires was applied to both studies. The data were analyzed with p<0,05. Along the Study #1, the mean and the standard-desviation e quarters were calculated, as well as the Pearson correlation coefficient concerning the physical activity level and the basic functional independence with other variables. Along the Study #2, ANOVA two-way, three-way e fourway was used, according with the test, in addition to the Pearson correlation coefficient. RESULTS: in both studies, older adult's engagement was lower than expected. Study #1 shows that: age=75.3 years old; Mini Exam of Mental State=11.5 points; Geriatric Depression Scale=12.8 points; Modified Baecke 100 Questionnaire for Older Adults=1.0 point, and Katz Scale of Basic Functional Independence=4.5 points, in addition... (Complete abstract click electronic access below) / Orientador: Sebastião Gobbi / Coorientador: Ruth Ferreira Santos / Banca: Hanna Karen Moreira Antunes / Banca: Cátia Mary Volp / Mestre

Down’s Syndrome (DS) is a genetic disorder associated with intellectual disability, accelerated aging and a propensity for early-onset Alzheimer’s disease (AD). Beta-amyloid plaques are one of the pathological hallmarks of AD, and also a common characteristic of the older DS brain. AD treatment trials are now moving towards administration of the intervention at preclinical stages, with the goal of preventing cognitive decline in the first place, rather than trying to halt or reverse existing pathology. Consequently, it has become essential to develop biomarkers of AD, which can: 1. Predict clinical changes and 2. Track the effectiveness of putative preventative treatments. The strong association between DS and AD means that this research is particularly important for people with DS and it presents a high-risk group for exploring predictive biomarkers. Electroencephalography (EEG) is a non-invasive and inexpensive measure of cortical activity, which is being evaluated with the typically developing (TD) population as a potential biomarker of AD. This thesis aims to evaluate EEG as a potential predictor of cognitive decline associated with DS-AD. There are several potential EEG measures that could be explored. Following a review of the literature, the predictive potential of the following event-related potentials (ERPs): mismatch negativity (MMN) and P300 (P3a and P3b), were chosen for exploration with cross-sectional and longitudinal investigations. The thesis begins by exploring how the ERPs differ for a cross-section of 36 adults with DS and 39 age- and gender-matched TD controls. As expected, the MMN waveform was smaller for adults with DS than TD controls. However, the P3b waveform was predominantly absent for adults with DS, whilst the P3a response was significantly enlarged. The P3a response was also enlarged for the adults with DS who scored lower on a neuropsychological measure. The neuropsychological measure indexes frontal functions, which are compromised early in DS-AD. This experiment also provided evidence that MMN was related to age in DS, with increasing latencies and decreasing amplitudes for older participants. The differences in MMN amplitude between the groups (DS, TD) were isolated to the older adults. These findings lend support to the premature aging hypothesis of DS. The thesis also included a longitudinal follow-up in which 34 adults with DS underwent a repeated cognitive examination one year after their EEG and initial cognitive assessment. The analyses found that adults with DS who had lower MMN amplitudes at the initial assessment were more likely to decline at the cognitive follow-up. This finding suggests that MMN may be a potentially useful clinical tool for predicting the cognitive decline associated with DS-AD.

Made available in DSpace on 2014-06-11T19:22:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-10-25Bitstream added on 2014-06-13T18:08:43Z : No. of bitstreams: 1 quadrosjunior_ac_me_rcla.pdf: 352146 bytes, checksum: c3d8dd4a171b920e5f714d014ac267d4 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O envelhecimento provoca declínios físico e/ou cognitivo. Ainda, algumas conseqüências da institucionalização do idoso parecem influenciar negativamente suas esferas física e cognitiva, geralmente já prejudicadas. Porém, o exercício aeróbio pode beneficiar ambas as esferas. Assim, esta pesquisa divide-se em Estudo #1 (transversal) e Estudo #2 (longitudinal) OBJETIVO: realizar o perfil de nível de atividade física, independência funcional básica, funções executivas, memória e estado cognitivo geral de idosos moradores de instituições de longa permanência para idosos de Rio Claro-SP (Estudo #1), e analisar possíveis efeitos de um programa de Dança de Salão nestas variáveis (Estudo #2). MATERIAIS E MÉTODOS: para o Estudo #1, a amostra foi aleatória e abrangeu 89,8% da população institucionalizada. Para o Estudo #2, a amostra foi de 14 idosos no Grupo Controle e de 13 idosos no Grupo Treinamento; o treinamento foi de três sessões de Dança de Salão por semana, durante seis meses. Em ambos os estudos foi aplicada a mesma bateria de testes e questionários. Os dados foram analisados com p<0,05. No Estudo #1, foi calculada média, desvio-padrão e quartis, além do coeficiente de correlação de Pearson para nível de atividade física e independência funcional básica com as outras variáveis. No Estudo #2, utilizou-se o teste de Shapiro-Wilk para analisar a normalidade da distribuição dos dados, teste t de Student para análise de similaridade inicial entre ambos os grupos. Assim, utilizou-se ANOVA two-way, three-way e four-way, dependendo do teste, além do coeficiente de correlação de ix Pearson. RESULTADOS: Em ambos os estudos, o desempenho dos idosos foi muito abaixo do esperado. No Estudo #1, obteve-se: idade=75,3 anos; Mini- Exame do Estado Mental=11,5 pontos; Escala Geriátrica de Depressão=12,8 pontos; Questionário Baecke Modificado... / Aging causes physical and/or cognitive decline. Moreover, some consequences of older adult’s institutionalization seem to exert a negative influence on their physical and cognitive spheres, which are generally are impaired. Anyhow, aerobic exercise can benefit both spheres. So, this research is divided into Study #1 (transversal) and Study #2 (longitudinal). OBJECTIVE: accomplish the profile of physical activity level, basic functional independence, executive functions, memory and general cognitive state of older adults living in the long-care homes at Rio Claro-SP (Study #1), and to analyze the possible effects of a Ballroom Dancing program in those variables (Study #2). MATERIAL AND METHODS: the sample selected in the framework of the Study#1 was randomized and achieved 89,8% of institutionalized population. With regard to Study #2, the sample included 14 older adults in the control group and 13 older adults in the training group. The training consisted by three sessions of Ballroom Dancing a week, during six months. The same battery of tests and questionnaires was applied to both studies. The data were analyzed with p<0,05. Along the Study #1, the mean and the standard-desviation e quarters were calculated, as well as the Pearson correlation coefficient concerning the physical activity level and the basic functional independence with other variables. Along the Study #2, ANOVA two-way, three-way e fourway was used, according with the test, in addition to the Pearson correlation coefficient. RESULTS: in both studies, older adult’s engagement was lower than expected. Study #1 shows that: age=75.3 years old; Mini Exam of Mental State=11.5 points; Geriatric Depression Scale=12.8 points; Modified Baecke 100 Questionnaire for Older Adults=1.0 point, and Katz Scale of Basic Functional Independence=4.5 points, in addition... (Complete abstract click electronic access below)