Abstract BACKGROUND: Obesity is a risk factor for falls in older adults, but the effects of body fat distribution and its interaction with other factors are not well established. OBJECTIVES: To verify the occurrence of falls among older adults with and without abdominal obesity and the effects of sociodemographic, health, and behavioral variables on this outcome. DESIGN AND SETTING: A cross-sectional study in an urban area of Alcobaça, Brazil. METHODS: Men and women older than 60 years with (270) and without (184) abdominal obesity were included. Sociodemographic, health, and behavioral data were collected using validated questionnaires in Brazil. Descriptive and path analyses were performed (P < 0.05). RESULTS: The occurrence of falls was high in participants with abdominal obesity (33.0%). In both groups, a higher number of morbidities (β = 0.25, P < 0.001; β = 0.26, P = 0.002) was directly associated with a higher occurrence of falls. Among participants without abdominal obesity, a lower number of medications (β = -0.16; P = 0.04), a higher number of depressive symptoms (β = 0.15; P = 0.04), worse performance on the agility and dynamic balance tests (β = 0.37; P < 0.001), and lower functional disability for basic activities of daily living (β = -0.21; P = 0.006) were directly associated with the occurrence of falls. CONCLUSION: Adults older than 60 years with abdominal obesity have a higher prevalence of falls. Different factors were associated with the occurrence of falls in both groups.

ABSTRACT BACKGROUND: Frailty syndrome is associated with various physical, cognitive, social, economic, and environmental factors. Although frailty syndrome occurs progressively with age, prevention and treatment are possible. Reducing or eliminating risks and increasing protective factors may be potential strategies for reducing the prevalence of injuries related to frailty. One of the most effective actions is to decrease the time spent in sedentary behavior (SB) by increasing regular physical activity (PA). OBJECTIVE: To examine the hypothetical effect of substitution of the time spent in sleep or SB with an equivalent time spent performing moderate or vigorous PA on frailty syndrome in the older population. DESIGN AND SETTING: An analytical cross-sectional study conducted using exploratory methods of survey, carried out in Alcobaça city, Bahia, Brazil. METHODS: A total of 456 older adults of both sexes, aged ≥ 60 years, participated in this study. Frailty syndrome was identified according to the criteria of the Study of Osteoporotic Fractures. PA and SB were assessed using the International Physical Activity Questionnaire, and sleep was assessed using the Pittsburgh Sleep Quality Index. The effects of time substitution on these behaviors were verified using Poisson regression. RESULTS: The replacement of 60 min/day of SB (prevalence ratio, PR = 0.52; 95% confidence interval, CI: 0.28–0.96) or sleep (PR = 0.52; 95% CI: 0.27–0.98) with 60 min/day of moderate PA (MPA) was associated with a 48% reduction in the prevalence of frailty syndrome. CONCLUSIONS: Replacing the time spent sitting or sleeping with the same amount of MPA time may reduce frailty; the longer the duration of time spent in the substitution of sleep or SB with MPA, the greater the benefits.

ABSTRACT BACKGROUND: Dynapenia is characterized by mobility limitations in the older population when combined with aggravating behavioral factors that can increase the risk of morbidity and mortality. OBJECTIVE: To investigate the hypothetical effects of reallocation of time spent on sedentary behavior (SB), moderate-to-vigorous physical activity (MVPA), and sleep on dynapenia in older adults. DESIGN AND SETTING: A prospective cohort study using exploratory surveys in Alcobaça City, Bahia State, Brazil. METHODS: In total, 176 older adults (≥ 60 years) of both sexes participated in this study. Dynapenia was assessed using the handgrip strength test with cutoff points of < 27 kg for men and < 16 kg for women. MVPA and SB were assessed using the International Physical Activity Questionnaire, and sleep was assessed using the Pittsburgh Sleep Quality Index. RESULTS: Effects on reallocation were found for the shortest times, such as 10 minutes (odds ratio (OR) 0.92; 95% confidence interval (CI): 0.85–0.99); substituting MVPA with SB increased the chances of dynapenia by 58.0% (95% CI: 1.01–2.49). Analyzing the substitution of 60 minutes/day of SB with 60 minutes/day of MVPA revealed a protective effect, with a lower OR for dynapenia of 37.0% (OR 0.63; 95% CI: 0.40–0.99). The reallocation of sleep time did not significantly reduce dynapenia. CONCLUSIONS: Substituting the time spent sitting with the same amount of time spent on MVPA can reduce dynapenia, and a longer reallocation time confers greater health benefits in older adults.

RESUMO Trata-se de um estudo metodológico quantitativo para validação de um instrumento de pesquisa. O objetivo era validar os dados do dispositivo de acelerometria TrackHealth. A amostra foi composta por 30 indivíduos adultos de ambos os sexos selecionados por conveniência que atenderam aos critérios de inclusão e exclusão. Os monitores de atividade física utilizados para o protocolo de pesquisa foram o acelerômetro triaxial ActiGraph® wGT3X-BT e o acelerômetro TrackHealth (TH). O protocolo de atividades consistiu em 4 (quatro) atividades (caminhada a 4,8 e 6,4 km h1 e corrida a 9,7 e 12 km h1) realizadas em laboratório, em esteira Ibramed, com duração de 5 (cinco) minutos em cada etapa. Foi encontrada uma diferença entre os dados brutos de aceleração dos dois dispositivos, no entanto, o dispositivo TrackHealth apresentou maior sensibilidade nas velocidades de 4,8 e 6,4 km / h, e um alto nível de concordância (2,7-2,8%) nas velocidades iniciais da magnitude vetores. Porém, ainda há necessidade de melhorias no funcionamento do aparelho, para que o TrackHealth possa ser comercializado.

ABSTRACT This is a quantitative methodological study for the validation of a research instrument. It aimed to validate the data from the TrackHealth accelerometry device. The sample consisted of 30 adult individuals of both sexes selected by convenience who met the inclusion and exclusion criteria. The physical activity monitors used for the research protocol were the ActiGraph® wGT3X-BT triaxial accelerometer and the TrackHealth accelerometer (TH). The activity protocol consisted of 4 (four) activities (walking at 4.8 and 6.4 km h1 and running at 9.7 and 12 km h1) performed in the laboratory, on an Ibramed treadmill, lasting 5 (five) minutes at each stage. A difference was found between the raw acceleration data of the two devices, however the TrackHealth device showed higher sensitivity at speeds of 4.8 and 6.4 km/h, and a high level of agreement (2.7-2.8%) at the initial speeds of the magnitude vectors. However, there is still a need for improvement in the functioning of the device, so that TrackHealth can be commercialized.

Abstract BACKGROUND: Obesity is a risk factor for falls in older adults, but the effects of body fat distribution and its interaction with other factors are not well established. OBJECTIVES: To verify the occurrence of falls among older adults with and without abdominal obesity and the effects of sociodemographic, health, and behavioral variables on this outcome. DESIGN AND SETTING: A cross-sectional study in an urban area of Alcobaça, Brazil. METHODS: Men and women older than 60 years with (270) and without (184) abdominal obesity were included. Sociodemographic, health, and behavioral data were collected using validated questionnaires in Brazil. Descriptive and path analyses were performed (P < 0.05). RESULTS: The occurrence of falls was high in participants with abdominal obesity (33.0%). In both groups, a higher number of morbidities (β = 0.25, P < 0.001; β = 0.26, P = 0.002) was directly associated with a higher occurrence of falls. Among participants without abdominal obesity, a lower number of medications (β = -0.16; P = 0.04), a higher number of depressive symptoms (β = 0.15; P = 0.04), worse performance on the agility and dynamic balance tests (β = 0.37; P < 0.001), and lower functional disability for basic activities of daily living (β = -0.21; P = 0.006) were directly associated with the occurrence of falls. CONCLUSION: Adults older than 60 years with abdominal obesity have a higher prevalence of falls. Different factors were associated with the occurrence of falls in both groups.

ABSTRACT BACKGROUND: Dynapenia is characterized by mobility limitations in the older population when combined with aggravating behavioral factors that can increase the risk of morbidity and mortality. OBJECTIVE: To investigate the hypothetical effects of reallocation of time spent on sedentary behavior (SB), moderate-to-vigorous physical activity (MVPA), and sleep on dynapenia in older adults. DESIGN AND SETTING: A prospective cohort study using exploratory surveys in Alcobaça City, Bahia State, Brazil. METHODS: In total, 176 older adults (≥ 60 years) of both sexes participated in this study. Dynapenia was assessed using the handgrip strength test with cutoff points of < 27 kg for men and < 16 kg for women. MVPA and SB were assessed using the International Physical Activity Questionnaire, and sleep was assessed using the Pittsburgh Sleep Quality Index. RESULTS: Effects on reallocation were found for the shortest times, such as 10 minutes (odds ratio (OR) 0.92; 95% confidence interval (CI): 0.85–0.99); substituting MVPA with SB increased the chances of dynapenia by 58.0% (95% CI: 1.01–2.49). Analyzing the substitution of 60 minutes/day of SB with 60 minutes/day of MVPA revealed a protective effect, with a lower OR for dynapenia of 37.0% (OR 0.63; 95% CI: 0.40–0.99). The reallocation of sleep time did not significantly reduce dynapenia. CONCLUSIONS: Substituting the time spent sitting with the same amount of time spent on MVPA can reduce dynapenia, and a longer reallocation time confers greater health benefits in older adults.

RESUMO Objetivo Estimar a prevalência de sintomatologia depressiva em idosos brasileiros residentes na comunidade. Métodos Foi realizada uma revisão sistemática nas bases de dados Medline, SciELO, Web of Science, Scopus e CINAHL, sendo selecionados estudos com idosos brasileiros que identificaram a prevalência de sintomatologia depressiva. De forma independente, dois pesquisadores selecionaram os estudos, extraíram os dados e avaliaram a qualidade metodológica. A metanálise foi realizada para estimar a prevalência de sintomatologia depressiva usando um modelo de efeito aleatório. Resultados Foram identificados 176 artigos e 33 foram incluídos na revisão, que investigaram 34 prevalências, com um total de 39.431 idosos. A distribuição geográfica dos estudos indicou pesquisas em todas as regiões do Brasil. A versão curta da Escala de Depressão Geriátrica foi a mais utilizada. A prevalência estimada de sintomatologia depressiva foi de 21,0% (IC de 95%: 18,0-25,0; I2 = 98,3%). As análises de subgrupos revelaram elevada heterogeneidade em todas as categorias analisadas. A metarregressão não identificou as causas da heterogeneidade. Conclusão Apesar da heterogeneidade entre os estudos analisados, os resultados indicam a necessidade de estratégias de intervenção para reduzir a prevalência de sintomatologia depressiva.

ABSTRACT Objective To estimate the prevalence of depressive symptoms in Brazilian elderly people living in the community. Methods We searched the electronic databases Medline (PubMed), SciELO, Web of Science, Scopus and CINAHL, and also selected studies with Brazilian elderly people that identified the prevalence of depressive symptoms. Independently, two researchers selected the studies, extracted the data and assessed the methodological quality. The meta-analysis was performed to estimate the prevalence of depressive symptoms using a random effect model. Results We identified 176 articles and 33 were included in the review, which investigated 34 prevalences, with a total of 39,431 elderly people. The geographical distribution of the studies indicated researches in all regions of Brazil. The short version of the Geriatric Depression Scale was the most used. The estimated prevalence of depressive symptoms for Brazilian community-dwelling older adults was 21.0% (95% CI: 18.0-25.0, I2 = 98.3%). Subgroup analyzes revealed high heterogeneity in all categories analyzed. Meta-regression did not identify the causes of heterogeneity. Conclusion Despite the heterogeneity between the studies analyzed, the results indicate the need for intervention strategies to reduce the prevalence of depressive symptoms.

Resumo O estilo de vida moderno está associado a maior exposição ao comportamento sedentário (CS), sobretudo em idosos, entretanto, há uma carência de questionários validados para medida do CS em idosos brasileiros. Objetivou-se adaptar transculturalmente e validar a versão brasileira do questionário “Measure of Older Adults Sedentary Time” (MOST). Adotou-se para adaptação e validação os critérios de validade de conteúdo, clareza e concorrente. Responderam ao MOST adaptado e utilizaram acelerômetro ActiGraph wGT3X-BT por sete dias, 57 idosos (68,7 ± 3,5 anos). Após esse período, o MOST adaptado foi reaplicado e o acelerômetro recolhido. Realizou-se o somatório dos tempos das questões do MOST, download dos dados do acelerômetro em counts/min e reintegração dos dados brutos para counts em epochs de 60 segundos no software ActiLife 6.0. Foi utilizado o ponto de corte <100 counts/min. A relação entre CS através do MOST e acelerômetro foi verificada pela correlação de Pearson, reprodutibilidade pelo coeficiente de correlação intraclasse (CCI), consistência interna pelo alpha de Cronbach (α) e concordância pelo Bland-Altman. Adotou-se p ≤ 0,05 para significância estatística. O índice de validade de conteúdo foi de 100% e clareza 98%. O CCI foi de 0,72 (IC95%: 0,56-0,82) para o tempo total em CS pelo MOST. A correlação entre o CS do MOST e do acelerômetro foi de 0,37 (IC95%:0,13-0,58). Houve tendência de subestimação do CS pelo MOST adaptado comparado ao acelerômetro (viés de medida: 732,8 min/sem [2087,6; -3553,2 min/sem]). O questionário MOST adaptado apresenta parâmetros psicométricos adequados para avaliação do CS em idosos brasileiros.

Abstract Modern lifestyle is associated with prolonged exposure to sedentary behavior (SB), especially in older adults; however, there is a lack of validated questionnaires to measure SB in Brazilian older adults. The aim of this study was to adapt and validate the Brazilian version of the "Measure of Older Adults Sedentary Time" (MOST) questionnaire in Brazilian older adults. Content validity, clarity and concurrent validity of the adapted MOST were examined. Fifty-seven participants (68.7 ± 3.47 years) answered the adapted version of the MOST questionnaire and wore an ActiGraph wGT3X-BT accelerometer for seven days. After this period, participants answered the adapted MOST again and the accelerometer was collected. MOST answers were summed over for calculating self-reported time spent in SB. A cutoff point of < 100 counts/min was applied to accelerometer data for estimating time spent in SB. The relationship between SB estimates from MOST and accelerometer was verified by Pearson correlation, reproducibility was verified by intra-class correlation coefficient (ICC), internal consistency by Cronbach's alpha (α) and concordance by Bland-Altman. Significance was set at P <0.05. Content validity index and clarity index were 100% and 98%, respectively. ICC was 0.72 (95% CI: 0.56-0.82) for total time in SB assessed with the MOST questionnaire. The correlation between SB estimates from MOST and accelerometer data was 0.37 (95% CI: 0.13-0.58). The adapted MOST systematically underestimated SB compared to accelerometer (measurement bias: -732.8 min/week [2087.6; -3553.2 min/wk]). The adapted MOST questionnaire presents adequate validity for assessing SB in the Brazilian older adults.

O objetivo desse estudo foi analisar a produção de artigos sobre comportamentos sedentários em idosos. Trata-se de uma revisão sistemática a partir da base de dados Pubmed. Os descritores utilizados foram “sedentary behavior” e “sitting time” combinados com elderly, older e aging. Foram incluídos artigos originais completos disponíveis até dezembro de 2013, que apresentassem medida do comportamento sedentário. Considerou-se o tipo de inquérito e delineamento, local da coleta dos dados, instrumentos, definição operacional e ponto de corte para comportamento sedentário. Foram encontrados 559 artigos, e desses 130 foram excluídos por duplicação, resultando em 429, desses 39 atenderam os critérios de inclusão estabelecidos. Os artigos foram publicados entre 2003 a 2013. Acelerômetro e questionário foram os instrumentos mais pronunciados para medida do comportamento sedentário nos artigos analisados. Foram identificadas lacunas na produção científica em relação aos pontos de corte para definir a quantidade de tempo sentado que representa risco à saúde das pessoas idosas, definição operacional universal, bem como falta de padronização dos instrumentos. Sugerem-se mais estudos relacionados com essa temática a fim de reduzir as lacunas existentes.

The aim of this study was to analyze the production of articles on sedentary behaviors in the elderly. This is a systematic review from the Pubmed database. The descriptors used were “sedentary behavior” and “sitting time” combined with elderly, older and aging. We included original articles available until December 2013, to submit measure of sedentary behavior. We considered the type of survey and design, instruments, operational definition and cutoff for sedentary behavior. The initial electronic searches resulted in 559 manuscripts, and of these 130 were excluded for duplication, resulting in 429 manuscripts. The process of analysis of the studies involved reading titles, abstracts and full texts. After all these phases, 39 manuscripts met the inclusion criteria of the review. The articles were published between 2003 and 2013. Accelerometer and questionnaire were instruments more pronounced for the measurement of sedentary behavior in the analyzed articles. We identified gaps in scientific production in relation to the cutoff points to define the amount of time sitting that poses a risk to the health of the elderly, operational definition universal, as well as lack of standardization of instruments. We suggest further studies related to this theme in order to reduce the gaps.

Resumo Em meados do século passado, transformações na economia e sociedade brasileira somaram-se para desencadear uma rápida transição demográfica, que se caracterizou pelo aumento de idosos. Assim, presenciou-se um envelhecimento populacional, que foi acompanhado pelo aumento da incidência de doenças crônicas não transmissíveis. Alguns fatores de risco estão bem estabelecidos para o desenvolvimento das doenças crônicas não transmissíveis, como excesso de peso, consumo de tabaco e álcool, alimentação inadequada e inatividade física. Adicionalmente, o comportamento sedentário mostrou-se relacionado a importantes efeitos deletérios à saúde, como, por exemplo, diabetes mellitus tipo 2, obesidade e mortalidade.O estudo teve como objetivo investigar a associação entre tempo sentado e diabetes mellitus em idosos. Estudo transversal, realizado em 24 municípios integrantes da Superintendência Regional de Saúde de Uberaba, MG. Os indivíduos selecionados responderam um questionário estruturado e foram submetidos à avaliação antropométrica. Foram analisados 3.265 idosos. A prevalência de diabetes mellitus foi de 20,0% e a mediana de tempo sentado de 240,00 (P25º=137,14 e P75º=330,00) minutos/dia. A análise de regressão logística ajustada demonstrou que o tempo sentado superior a 330,00 minutos/dia associou-se positivamente com a diabetes mellitus (OR=1,329; IC95%: 1,040-1,700). Pode-se concluir que os idosos que ficam sentados por longos períodos diariamente apresentam maior chance de ter diabetes mellitus quando comparados com aqueles que ficam sentados por menor tempo.

Abstract By the middle of the last century, changes in the Brazilian economy and society triggered a rapid demographic transition characterized by an increased number of older adults in the population. Thus, Brazil has witnessed population aging, which was accompanied by an increased incidence of non-communicable chronic diseases. Some risk factors for the development of the chronic non-communicable diseases have been well established, such as overweight, tobacco and alcohol consumption, inadequate nutrition, and physical inactivity. Additionally, sedentary behavior has been related to significant deleterious effects on health, such as diabetes mellitus type 2, obesity and mortality. The objective of this study was to investigate the association between sitting time and diabetes mellitus in older adults. A cross-sectional study was conducted in 24 municipalities in the Regional Health Superintendence of Uberaba, MG. Selected subjects answered a structured questionnaire and underwent anthropometric assessment. A total of 3,265 elderly subjects, with a median time spent sitting of 240.00 (P25th=137.14 and P75th=330.00) minutes/day and a 20.0% prevalence of diabetes mellitus were detected. Adjusted logistic regression analysis showed that a sitting time of more than 330.00 minutes/day was positively associated with diabetes mellitus (OR=1.351, 95%CI: 1.057-1.729). It was concluded that older adults who daily sit for long periods of time have higher chances of having diabetes compared to those who sit for less time.

The aim of this study was to estimate the prevalence and factors associated with functional disability in the elderly. The cross-sectional design was used with a sample of 624 individuals, between 60 and 96 years of age. In the assessment of the elderly interviews and physical performance tests were used. In the inferential data analysis, the Poisson regression was used, p≤0.05. The prevalence of disability was 17.6% for Basic Activities of Daily Living and 46.3% for Instrumental Activities of Daily Living. Functional disability for Basic Activities of Daily Living was associated with increasing age, alcohol consumption, depressive symptoms and frailty; the Instrumental Activities of Daily Living were associated with increasing age, illiteracy, multigenerational family arrangement, hospitalization and fragility. The variables that remained in the explanatory model for the decline of functional capacity should be emphasized in proposals for public policies to promote the health of the elderly.

El objetivo fue estimar la prevalencia y los factores asociados a la discapacidad. Se utilizó diseño transversal, con muestra de 624 individuos de edades comprendidas entre 60 a 96 años. En la evaluación fueron utilizados entrevista y pruebas de rendimiento físico. En análisis de datos inferencial se utilizó regresión de Poisson, p≤0,05. La prevalencia de discapacidad fue 17,6% para las Actividades Básicas de la Vida Diaria y 46,3% en las actividades instrumentales de la vida diaria. La incapacidad funcional para Actividades Básicas de la Vida Diaria se asoció con la edad, consumo de alcohol, síntomas depresivos y fragilidad; actividades instrumentales de la vida diaria se asociaron con la edad, analfabetismo, disposición de la familia multigeneracional, hospitalización y fragilidad. Las variables que se mantuvieron en el modelo explicativo de la disminución de la capacidad funcional deben hacerse hincapié en la elaboración de políticas públicas para promover la salud de los ancianos.

O objetivo deste estudo foi estimar a prevalência e os fatores associados à incapacidade funcional em idosos. O delineamento transversal foi empregado com amostra de 624 indivíduos com idade entre 60 e 96 anos. Na avaliação dos idosos, foram utilizados entrevista e testes de desempenho físico. Na análise inferencial dos dados, foi utilizada a regressão de Poisson, p≤0,05. A prevalência de incapacidade funcional foi de 17,6% para Atividades Básicas da Vida Diária e 46,3% nas Atividades Instrumentais da Vida Diária. A incapacidade funcional para Atividades Básicas da Vida Diária associou-se ao aumento da idade, consumo de bebidas alcoólicas, sintomatologia depressiva e fragilidade; as Atividades Instrumentais da Vida Diária foram associadas ao avanço da idade, analfabetismo, arranjo familiar multigeracional, hospitalização e fragilidade. As variáveis que permaneceram no modelo explicativo para o declínio da capacidade funcional devem ser enfatizadas na proposição de políticas públicas de promoção à saúde de idosos.

O objetivo deste estudo foi estimar a prevalência e os fatores associados à incapacidade funcional em idosos. O delineamento transversal foi empregado com amostra de 624 indivíduos com idade entre 60 e 96 anos. Na avaliação dos idosos, foram utilizados entrevista e testes de desempenho físico. Na análise inferencial dos dados, foi utilizada a regressão de Poisson, p≤0,05. A prevalência de incapacidade funcional foi de 17,6% para Atividades Básicas da Vida Diária e 46,3% nas Atividades Instrumentais da Vida Diária. A incapacidade funcional para Atividades Básicas da Vida Diária associou-se ao aumento da idade, consumo de bebidas alcoólicas, sintomatologia depressiva e fragilidade; as Atividades Instrumentais da Vida Diária foram associadas ao avanço da idade, analfabetismo, arranjo familiar multigeracional, hospitalização e fragilidade. As variáveis que permaneceram no modelo explicativo para o declínio da capacidade funcional devem ser enfatizadas na proposição de políticas públicas de promoção à saúde de idosos.

The aim of this study was to estimate the prevalence and factors associated with functional disability in the elderly. The cross-sectional design was used with a sample of 624 individuals, between 60 and 96 years of age. In the assessment of the elderly interviews and physical performance tests were used. In the inferential data analysis, the Poisson regression was used, p≤0.05. The prevalence of disability was 17.6% for Basic Activities of Daily Living and 46.3% for Instrumental Activities of Daily Living. Functional disability for Basic Activities of Daily Living was associated with increasing age, alcohol consumption, depressive symptoms and frailty; the Instrumental Activities of Daily Living were associated with increasing age, illiteracy, multigenerational family arrangement, hospitalization and fragility. The variables that remained in the explanatory model for the decline of functional capacity should be emphasized in proposals for public policies to promote the health of the elderly.

El objetivo fue estimar la prevalencia y los factores asociados a la discapacidad. Se utilizó diseño transversal, con muestra de 624 individuos de edades comprendidas entre 60 a 96 años. En la evaluación fueron utilizados entrevista y pruebas de rendimiento físico. En análisis de datos inferencial se utilizó regresión de Poisson, p≤0,05. La prevalencia de discapacidad fue 17,6% para las Actividades Básicas de la Vida Diaria y 46,3% en las actividades instrumentales de la vida diaria. La incapacidad funcional para Actividades Básicas de la Vida Diaria se asoció con la edad, consumo de alcohol, síntomas depresivos y fragilidad; actividades instrumentales de la vida diaria se asociaron con la edad, analfabetismo, disposición de la familia multigeneracional, hospitalización y fragilidad. Las variables que se mantuvieron en el modelo explicativo de la disminución de la capacidad funcional deben hacerse hincapié en la elaboración de políticas públicas para promover la salud de los ancianos.

O objetivo deste estudo foi analisar as características sociodemográficas, de saúde e comportamentais relacionadas a não participação das idosas nas atividades oferecidas pelo programa Proeti Saúde de Uberaba, Minas Gerais. Estudo observacional, do tipo caso controle, com pareamento 1:1, tendo amostra sido composta por 220 idosas de 60 a 80 anos. A Regressão Logística Binária foi utilizada para a identificação dos fatores sociodemográficos, de saúde e comportamentais associados ao não engajamento das não usuárias ao programa. Após análise hierarquizada o não engajamento das idosas às atividades do programa mostrou-se associada à sintomatologia depressiva, prática insuficiente de atividade física no domínio do lazer e autoeficácia reduzida para a realização de atividade física moderada ou vigorosa. As características identificadas neste estudo devem receber atenção prioritária na formulação de programas comunitários direcionados à promoção de atividade física às pessoas idosas.

The aim of this study was to examine the sociodemographic, health and behavioural characteristics related to non-participation of elderly people in activities offered by the program PROETI Health of Uberaba, Minas Gerais state. Observational study, case-control design with pairing 1:1 and sample composed of 220 elderly 60-80 years. Binary Logistic Regression was used to identify the sociodemographic, health and behavioral factors associated with non-engagement of non-users to the program. After hierarchical analysis, the non-engagement of the elderly in the program activities was associated with depressive symptoms, insufficient physical activity in the domain of leisure and reduced self-efficacy for performing moderate or vigorous physical activity. The characteristics identified in this study should receive priority attention in the formulation of community programs targeted at promoting physical activity for elderly people.

O presente estudo de revisão narrativa teve como objetivos: a) rever os termos operacionais utilizados para a caracterização do comportamento sedentário; b) descrever as implicações para a saúde; e c) os principais métodos de avaliação do comportamento sedentário. Comportamento sedentário é o termo direcionado para as atividades que são realizadas na posição deitada ou sentada e que não aumentam o dispêndio energético acima dos níveis de repouso, <= 1.5 equivalentes metabólicos (METs). Ao analisar as implicações fisiológicas destes comportamentos para a saúde das pessoas é possível destacar a redução e/ou a cessação da contratilidade muscular como desencadeador do processo de diminuição da utilização da glicose pelos músculos, do aumento da insulina e do favorecimento da produção de lipídios que serão preferencialmente armazenados no tecido adiposo da região central do corpo, o qual por sua vez produz moléculas inflamatórias precursoras das doenças crónicas não transmissíveis. A inatividade física e a exposição prolongada a comportamentos sedentários devem ser avaliadas distintamente, respeitando as bases teóricas de cada constructo. O efeito prolongado da exposição aos comportamentos sedentários e da inatividade física ao longo do curso da vida favorece a potencialização dos efeitos nocivos de tais comportamentos na velhice e a mortalidade precoce.

This present study aimed to: a) review the operational terms of sedentary behaviour characterization, b) describe the health implications, and c) sedentary behaviour main evaluation methods. Sedentary behaviour is the word targeting activities that are performed in lying or sitting position and that do not increase energy expenditure above resting levels, <= 1.5 metabolic equivalent units (METs). Through the analysis of the physiological implications of such behaviour to people's health it is possible to highlight the reduction and / or cessation of muscle contractility as a beginner of the reducing process of the use of glucose by muscles, increasing insulin and facilitating the production of lipids that are preferentially stored in the central body adipose tissue, which in turn produces inflammatory molecules which are the precursors of non-transmissible chronic diseases. Physical inactivity and prolonged exposure to sedentary behaviours should be evaluated distinctly, considering the theoretical bases of each construct. The prolonged effect of sedentary behaviours and physical inactivity throughout lifespan enables the possibility of the harmful effects of such behaviours in old age and premature mortality.

O objetivo deste estudo foi analisar as características sociodemográficas, de saúde e comportamentais relacionadas a não participação das idosas nas atividades oferecidas pelo programa Proeti Saúde de Uberaba, Minas Gerais. Estudo observacional, do tipo caso controle, com pareamento 1:1, tendo amostra sido composta por 220 idosas de 60 a 80 anos. A Regressão Logística Binária foi utilizada para a identificação dos fatores sociodemográficos, de saúde e comportamentais associados ao não engajamento das não usuárias ao programa. Após análise hierarquizada o não engajamento das idosas às atividades do programa mostrou-se associada à sintomatologia depressiva, prática insuficiente de atividade física no domínio do lazer e autoeficácia reduzida para a realização de atividade física moderada ou vigorosa. As características identificadas neste estudo devem receber atenção prioritária na formulação de programas comunitários direcionados à promoção de atividade física às pessoas idosas.

The aim of this study was to examine the sociodemographic, health and behavioural characteristics related to non-participation of elderly people in activities offered by the program PROETI Health of Uberaba, Minas Gerais state. Observational study, case-control design with pairing 1:1 and sample composed of 220 elderly 60-80 years. Binary Logistic Regression was used to identify the sociodemographic, health and behavioral factors associated with non-engagement of non-users to the program. After hierarchical analysis, the non-engagement of the elderly in the program activities was associated with depressive symptoms, insufficient physical activity in the domain of leisure and reduced self-efficacy for performing moderate or vigorous physical activity. The characteristics identified in this study should receive priority attention in the formulation of community programs targeted at promoting physical activity for elderly people.