Efeitos de um programa de resistência na força e massa muscular de idosos

• Ano de defesa: 2010
• Autor(a) principal: Ruzzarin, Ana Rúbia Camboim
• Orientador(a): Machado, Denise Cantarelli
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontifícia Universidade Católica do Rio Grande do Sul; Porto Alegre
• Palavras-chave em Português: MEDICINA; ENVELHECIMENTO; IDOSOS; FORÇA MUSCULAR; EXERCÍCIOS ISOMÉTRICOS; ATIVIDADES MOTORAS; QUALIDADE DE VIDA; SARCOPENIA; MÚSCULOS - FISIOLOGIA
• Link de acesso: http://hdl.handle.net/10923/4342

ACKGROUND: The global population is aging. In the physiological process of aging, weight loss (sarcopenia) and muscle strength in elderly people, is responsible for the reduction of mobility, increased functional disability and physical dependence in this population. OBJECTIVE: This study aimed to compare the strength gains and muscle mass in elderly independents in a protocol of resistance, using elastic straps (group 1) and weights and leggings (group 2). PATIENTS AND METHODS: Experimental study with longitudinal design. The study sample consisted of 43 subjects. The application of the whole protocol was performed in the following order: a) initial assessment (anthropometric measurements, bioelectrical impedance analysis, socio-demographic, lifestyle, disease, heredity, medications, tests of strength); b) djustment period neuromuscular; c) protocols in order to gain strength resistance; d) final evaluation. The sample was stratified randomly into two groups. Group 1 - elastic straps (n = 21) and group 2 - dumbbells and leggings (n = 22). We adopted a significance level of 5%. Associations between categorical variables and the research group were analyzed using the chi-square test or Fisher exact. Quantitative variables at baseline or baseline were compared using the Student t test. ANOVA with repeated measures was used to compare the results of the protocols of resistance in the two periods of investigation (initial and final) between the two groups.RESULTS: Both groups were homogeneous with respect to all variables of interest to the survey at baseline. Significant differences (p <0. 05) between the two moments of the trial for the following variables: diameter of the thigh, waist, skinfolds, fat percentage, percentage of body fat-free mass, weight, body fat-free mass, weight body fat mass, body water test, chair stand and arm strength test. No differences were observed between the results of the two protocols resistência. CONCLUSION: Resistance exercise, performed with traditional elastic straps and weights, proved to be effective in recovery of weight loss and increased muscle strength in elderly independents.