Navegando por Palavras-chave "Longitudinal study"

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    Evolução do perfil neuromotor e capacidade funcional de mulheres fisicamente ativas de acordo com a idade cronológica
    (Sociedade Brasileira de Medicina do Exercício e do Esporte, 2003-11-01) Matsudo, Sandra Mahecha; Matsudo, Victor K.r.; Barros Neto, Turibio Leite de [UNIFESP]; Araújo, Timóteo Leandro de; Centro de Estudos do Laboratório de Aptidão Física de São Caetano do Sul Projeto Longitudinal de Envelhecimento e Aptidão Física de São Caetano do Sul; Universidade Federal de São Paulo (UNIFESP)
    BACKGROUND AND PURPOSE: There are few longitudinal studies to determine the effect of aging on physical fitness and functional capacity of physically active women. The purpose of this study was to compare the evolution of neuromotor profile and functional capacity in active elderly women in one-year period as related to chronological age at the base line. METHODS: Sample consisted of 117 women from 50 to 79 years of age (: 65 ± 6.6 years) engaged in an aerobic program, twice a week, 50 minutes per session during 5.4 ± 3.0 years and divided in three age groups: 50-59 (n: 23); 60-69 (n: 60); 70-79 (n: 34). Motor function and mobility tests included: lower and upper limb strength, agility, trunk flexibility, velocity of rising from a chair, static balance, gait speed and maximum gait speed. Results at the base line and in two evaluations made at six-month interval were compared using a Two Way ANOVA, with a post-hoc Bonferroni. RESULTS: There were no differences regarding neuromotor performance, although velocity of rising from a chair and gait speed evidenced significant differences in groups 50-59 and 60-69 years, showing better results (10-20%); and for maximum gait speed there was an increase (8%) in 60-79 age groups. CONCLUSION: Present results suggest that physical fitness and functional capacity evolution had a similar pattern among physically active women, regardless of chronological age. This evolution supports the hypothesis of regular physical activity as a powerful tool to promote health, being of utmost importance to a healthy aging.
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    Fatores associados ao baixo índice de massa muscular no envelhecimento e sua relação com incapacidade funcional em uma coorte de idosos na cidade de São Paulo
    (Universidade Federal de São Paulo (UNIFESP), 2017-11-28) Naveira, Miguel Angelo Moscoso [UNIFESP]; Andreoni, Solange [UNIFESP]; Ramos, Luiz Roberto [UNIFESP]; http://lattes.cnpq.br/3798829566782422; http://lattes.cnpq.br/7300291437204130; http://lattes.cnpq.br/9568941794426374; Universidade Federal de São Paulo (UNIFESP)
    Introduction: The growth of the elderly population is a worldwide phenomenon and is associated with profound changes in body composition. The purpose of this study was to describe the magnitude of the problem, to evaluate the associated factors and the relation with functional capacity in the study population. Objectives: To identify the main factors associated with the presence of low muscle mass index in non-obese individuals aged 65 and over, participating in the EPIDOSO Project, to estimate their frequency and to evaluate the relationship between low skeletal muscle mass index and functional capacity and / or death in the study population. Methodology: The reference population in this study was represented by the population of non-obese individuals aged 65 years or older living in the Vila Clementino neighborhood, in the city of São Paulo. Secondary data from the EPIDOSO Project were used in cross-sectional surveys conducted at the Center for the Study of Aging at the Paulista School of Medicine / Federal University of São Paulo (UNIFESP). Two studies were performed. Study 1: Transversal design with data of 563 non-obese elderly individuals belonging to the 1st moment of the EPIDOSO Project in the period 1991-1992. The values of skeletal muscle mass index obtained through anthropometric data and predictive equation were considered. The following variables were investigated: gender, age, ethnicity, marital status, schooling, physical activity level, medical history, cognitive deficit, falls in the last 12 months and functional capacity. For the analysis, multiple logistic regression was used with a hierarchical model with p <0,05 and 95% CI. Study 2: Longitudinal design consisting of a sample of 335 elderly individuals aged 65 years or over, non-obese and absence of functional disability at the beginning of the cohort. The variables gender, age, ethnicity, medical history and functional capacity were investigated. The values of muscle mass index (MMI) were obtained through anthropometric data and a predictive equation. The functional capacity was measured by means of a multidimensional questionnaire structured and validated for the Brazilian population. The deaths occurred in the period were investigated with relatives through household surveys, in registries and registries of the State System of Data Analysis Foundation. Estimates of event-free survival were calculated using Kaplan-Meier Curves, using the Log-Rank test to establish comparisons. A multiple Cox proportional hazards model was used to identify the independent effect of predictors of disability or death at p <0.05 and 95% CI. The statistical program SPSS 20.0 was used for all analyzes. Results: Study 1: 39,4% were male and 60,6% female. The mean age was 74,32 years (SD=6,17 years). The frequency of non-obese elderly with low muscle mass index was approximately 14.6%, being 15.8% in men and 13.8% in women. Significant associations with low muscle mass index were found in the final model only with the age range of 75 to 79 years (ORaj =4,88; 95%CI[2,22; 10,71]), 80 to 84 years (ORaj=8,25; 95%CI[3,45; 19,72]) and 85 years or more (ORaj=7,94; 95%CI[3,12; 10,23]). Study 2: The mean time found for the onset of functional disability and / or death was 7,1 years (95%CI [6,8; 7,5]). In the crude analysis, there were statistically significant differences in the time to occurrence of functional disability or death, by age group (p <0.001), arterial hypertension (p=0,046), diabetes mellitus (p=0,007) and marginal statistical difference muscle mass index (p=0,105). The factors associated with a greater risk of occurrence of functional disability were 75 to 79 years (HR=3,31;95% CI[1,88; 5,85]), 80 to 84 years old (HR=4,30;95%CI[2,22; 8,31]), 85 years or older (HR=8,22;95%CI[3,87;17,47]), both with p<0.001 and presence of diabetes mellitus (HR=1,85;95%CI[1,09; 3,12]) with p=0,022. Conclusion: In the first study, advanced age mainly above 75 years was an important factor in the regulation of the variable muscle mass index. In the second study, advancing age and presence of diabetes mellitus increased the risk of the elderly presenting functional disability.