Validação do Questionário LASA-SBQ para medida do comportamento sedentário em idosos brasileiros

• Ano de defesa: 2016
• Autor(a) principal: HÉLIO JÚNIOR, Jairo
• Orientador(a): VIRTUOSO JUNIOR, Jair Sindra
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Triângulo Mineiro
• Programa de Pós-Graduação: Programa de Pós-Graduação em Educação Física
• Departamento: Instituto de Ciências da Saúde - ICS::Curso de Graduação em Educação Física
• País: Brasil
• Palavras-chave em Português: Questionário; Comportamento Sedentário; Saúde do idoso; Estudos de Validação
• Palavras-chave em Inglês: Questionnaire; Sedentary behavior; Health of the elderly; Validation Studies
• Área do conhecimento CNPq: Educação Física
• Link de acesso: http://bdtd.uftm.edu.br/handle/tede/250

Evidence has accumulated that prolonged time spent in sedentary behavior (SB) is related to detrimental effects to health. This makes SB assessment an important aspect in public health, especially in the older population, which presents high prevalence of SB and is the fastest growing age group in Brazil. Thus, the purposes of this study were to: a) conduct a systematic review of studies that examined the reliability and validity of questionnaires for SB estimation; and b) carry out cross-cultural adaptation and to test the reliability and validity of the "Longitudinal Aging Study Amsterdam - Sedentary Behavior Questionnaire" (LASA-SBQ). First, a search for articles that examined the reliability and/or validity of SB assessment questionnaires in individuals aged ≥60 years was conducted. A total of 19 studies were included, from which it was observed that there is a limitation of questionnaires to assess the different domains of SB. In addition, we observed differences in the number of questions, recall period, type of measurement, and other aspects, across the different questionnaires. The cross-cultural adaptation of the LASA-SBQ followed standard recommendations for the translation-back translation procedure, including evaluation by a panel of experts and a sample of older adults for testing face validity and clarity of the instrument. After translation, the final version was tested in a group of elderly (>64 years, n = 48) twice (test and retest) with seven days apart. During this 7-day period, older adults used an accelerometer in order to obtain the criterion measure for SB. The Portuguese version of the LASA-SBQ presented satisfactory content validity and clarity. The final version of the questionnaire showed substantial reliability (ICC = 0.65) as well as regular and significant test-retest correlations between estimates from the accelerometer and the LASA-SBQ (r = 0.30 and 0.31, p = 0 04) for SB on a working day. On average, older adults in this study spent 492 ± 76 minutes/day in SB according to the accelerometer estimates and 528 ±124 according to the LASA-SBQ. In conclusion, the literature search indicated that questionnaires for SB assessment demonstrated low levels of validity and reliability, suggesting a need to refine these tools in order to be used in future studies. Thus, the LASA-SBQ adapted in the present study may be useful for evaluating SB in Brazilian older adults and, thus, may contribute to partially filling the gap in the literature.