School-based interventions have been evaluated to examine its implementation quality and to identify the characteristics of successful participants. The objective was to analyze the process evaluation of the "Saude na Boa" intervention and to test differences between successful participants and dropouts. Twenty schools were randomly selected to receive the intervention (n= 10) or the control (n= 10), in Recife-PE and Florianopolis-SC. The process evaluation was performed in the intervention schools using a checklist of items from five domains (knowledge, visibility, environment, Physical Education classes and extracurricular activities). The operational intervention quality was classified using the median score from each domain (median from 0.0 to 1.0= low, from 1.1 to 2.0= moderate, and from 2.1 to 3.0= high). Student characteristics were assessed at baseline (March 2006) and were compared between the participants who successfully completed the intervention (n= 989) and the dropouts (n= 1,166). We verified moderate to high operational quality of the intervention for knowledge (median= 2.0), fruit distribution and bike rack installation (median= 1.5), acquisition of materials (median= 3.0) and distribution of journals (median=2.0). Students who dropped out were significantly more frequent in male (47.8% vs. 40.3%), in student workers (49.2% vs. 44.2%), those who smoked (21.8% vs. 13.6%) and consumed alcoholic beverages (57.4% vs. 49.5%), and slept ≥8 h/day (19.5% vs. 27.3%), than participants who did not drop out. Therefore, the "Saude na Boa" intervention was of moderate operational quality. Participants and dropout students differed according to their gender, work status and use of licit drugs.
Objective To estimate the dose–response associations between non-occupational physical activity and several chronic disease and mortality outcomes in the general adult population. Design Systematic review and cohort-level dose-response meta-analysis. Data sources PubMed, Scopus, Web of Science and reference lists of published studies. Eligibility criteria Prospective cohort studies with (1) general population samples >10 000 adults, (2) ≥3 physical activity categories, and (3) risk measures and CIs for all-cause mortality or incident total cardiovascular disease, coronary heart disease, stroke, heart failure, total cancer and site-specific cancers (head and neck, myeloid leukaemia, myeloma, gastric cardia, lung, liver, endometrium, colon, breast, bladder, rectum, oesophagus, prostate, kidney). Results 196 articles were included, covering 94 cohorts with >30 million participants. The evidence base was largest for all-cause mortality (50 separate results; 163 415 543 person-years, 811 616 events), and incidence of cardiovascular disease (37 results; 28 884 209 person-years, 74 757 events) and cancer (31 results; 35 500 867 person-years, 185 870 events). In general, higher activity levels were associated with lower risk of all outcomes. Differences in risk were greater between 0 and 8.75 marginal metabolic equivalent of task-hours per week (mMET-hours/week) (equivalent to the recommended 150 min/week of moderate-to-vigorous aerobic physical activity), with smaller marginal differences in risk above this level to 17.5 mMET-hours/week, beyond which additional differences were small and uncertain. Associations were stronger for all-cause (relative risk (RR) at 8.75 mMET-hours/week: 0.69, 95% CI 0.65 to 0.73) and cardiovascular disease (RR at 8.75 mMET-hours/week: 0.71, 95% CI 0.66 to 0.77) mortality than for cancer mortality (RR at 8.75 mMET-hours/week: 0.85, 95% CI 0.81 to 0.89). If all insufficiently active individuals had achieved 8.75 mMET-hours/week, 15.7% (95% CI 13.1 to 18.2) of all premature deaths would have been averted. Conclusions Inverse non-linear dose–response associations suggest substantial protection against a range of chronic disease outcomes from small increases in non-occupational physical activity in inactive adults. PROSPERO registration number CRD42018095481.
Car travel is associated with increased risk of morbidity and mortality, physical inactivity, traffic collisions and casualties, and air and noise pollution. Effective interventions are required to reduce car use and change travel behaviour to sustainable modes. We conducted an umbrella review: 1) determine effective interventions and intervention components to reduce car use and change travel behaviour; and 2) determine where effective components are situated by level of delivery (micro-, meso- or macro-level). Five databases were searched (2000–2022) for reviews implementing a systematic review process. Data synthesis involved the identification of effective intervention approaches and components and the structuring of components by delivery level. Reviews' methodological quality was graded. Reviews were assessed for effectiveness ("negative", "null", "positive" or "inconclusive") and consistency of results ("consistent" or "suggestive"). Searches identified 20,451 records, with 18 included. Eight reviews (moderate quality) were positive consistent (n = 6) or positive suggestive (n = 2) and focused on active school travel (n = 5), walking for transport (n = 1), organisational travel plans (n = 1) and teen mobility (n = 1). One active travel review (workplaces, low quality) was rated positive consistent, with the remaining positive consistent/suggestive reviews having critically low quality: car sharing (n = 1); passive to active travel (n = 1); soft interventions (n = 1); car use reduction (n = 2); and walking school buses (n = 1). Other moderate quality reviews were inconclusive (promotion of walking and cycling (n = 1) and bicycle active school travel (n = 1)) and null consistent (behavioural interventions, n = 1). The majority of effective components were micro-level, with no investigations into intervention cost-effectiveness or inequalities. This review highlighted evidence to support active school travel, teen mobility, organisational travel plans and walking for transport as effective interventions. When combined, these interventions present a potentially healthy and sustainable life course approach. The majority of effective components were micro-level. More meso- and macro-level, cost-effectiveness and inequality investigations required.
Regular physical activity practice has been widely recommended for promoting health, but the physical activity levels remain low in the population. Therefore, the study of interventions to promote physical activity is essential. Objective: To present the methodology of two physical activity interventions from the “Ambiente Ativo” (“Active Environment”) project. 12-month non-randomized controlled intervention trial. 157 healthy and physically inactive individuals were selected: health education (n = 54) supervised exercise (n = 54) and control (n = 49). Intervention based on health education: a multidisciplinary team of health professionals organized the intervention in group discussions, phone calls, SMS and educational material. Intervention based on supervised exercise program: consisted of offering an exercise program in groups supervised by physical education professionals involving strength, endurance and flexibility exercises. The physical activity level was assessed by the International Physical Activity Questionnaire (long version), physical activities recalls, pedometers and accelerometers over a seven-day period. This study described two different proposals for promoting physical activity that were applied to adults attended through the public healthcare settings. The participants were living in a region of low socioeconomic level, while respecting the characteristics and organization of the system and its professionals, and also adapting the interventions to the realities of the individuals attended. Both interventions are applicable in regions of low socioeconomic level, while respecting the social and economic characteristics of each region. ClinicalTrials.gov NCT01852981
The aim was to investigate intersectorality experiences directed to public health problems, initiated from 2001 in Brazil. Therefore, a review was conducted using the Lilacs reference basis, selecting intersectoral action descriptions that had approached public health problems in the country and that had involved the Health sector. Eleven articles were included, in which were observed lack of intersectorality definition, partnership with the Education sector in ten projects and rare impact and sustainability assessments. More information about intersectoral actions are urgent in order to evaluate their impact, to understand common barriers and limitations, and ways to make them more effective.
O padrão de morbimortalidade no Brasil contemporâneo é caracterizado pelas altas prevalênciasde doenças crônicas não transmissíveis. O objetivo deste trabalho foi situar o papel da atividadefísica neste padrão de morbimortalidade, contextualizando o conceito de “Transiçãoda Atividade Física” e discutindo a contribuição da Educação Física na promoção da atividadefísica e saúde. Parece evidente que houve redução no nível de atividade física nos domíniosocupacional, deslocamento e doméstico, em contrapartida à estabilização ou incremento nodomínio do lazer. A inserção da Educação Física no Sistema Único de Saúde e as ações governamentaisde promoção de atividade física são promissoras e necessitam de avaliação. Aescola constitui contexto privilegiado para alcançar os jovens, além de seus familiares e dosmoradores de seu entorno. Por fi m, à Educação Física tem sido atribuída uma maior participaçãona promoção da saúde dos brasileiros, tanto por meio de ações no contexto da comunidadecomo na escola.
OBJETIVO: Estimar a ocorrência de insatisfação com peso corporal e os fatores associados em adolescentes. MÉTODOS: Estudo transversal, representativo dos escolares de 15 a 19 anos de escolas públicas de Santa Catarina, no ano de 2002. O desfecho do estudo foi a satisfação com o peso corporal, avaliada pela pergunta: "Você está satisfeito(a) com seu peso corporal?". As variáveis avaliadas foram: sexo, idade, renda familiar, local de residência, estado nutricional, tempo semanal assistindo televisão, tabagismo e autopercepção de saúde. Investigaram-se também os seguintes comportamentos alimentares: tomar remédios para emagrecer, provocar vômitos após as refeições e realizar, no mínimo, três refeições/dia. Empregou-se regressão multinomial nas análises bruta e ajustada. RESULTADOS: Dentre os adolescentes avaliados (n=5.028), 16,7% (IC95%: 15,7-17,7) estavam insatisfeitos com seu peso e gostariam de aumentá-lo, e 36,2% (IC95%: 34,9-37,5) gostariam de diminui-lo. Tomar remédios para emagrecer, provocar vômitos após as refeições e não realizar, no mínimo, três refeições/dia foram mais frequentes entre aqueles que gostariam de reduzir o peso. Após análise ajustada, os fatores associados ao desejo de aumentar o peso foram: sexo masculino, idade >17 anos, residir na zona urbana, não ter excesso de peso e autopercepção de saúde negativa. Já os fatores associados ao desejo de diminuir o peso foram: sexo feminino, residir na zona urbana, ter excesso de peso e uma percepção negativa de saúde. CONCLUSÕES: Encontrou-se alta prevalência de insatisfação com o peso, sendo as variáveis sexo, estado nutricional e autopercepção de saúde os fatores mais fortemente associados a tal comportamento.
Background: Emerging infectious diseases (EIDs) arise and affect society in complex ways. We conducted a scoping review to explore how systems-oriented methods have been used to prevent and control EIDs. Methods: We used the Joanna Briggs Institute framework for scoping reviews in this study. We included peer-reviewed articles about health care systems preparedness and response, published from 1 January 2000. We considered the World Health Organisation’s (WHO) list of prioritised diseases for research and development when choosing the pathogens and only included studies that considered the dynamics between the system’s elements. Results: Our initial search yielded 9985 studies. After screening, 177 studies were considered for inclusion in this review. After assessment by two independent reviewers, seven studies were included. The studies were published between 2009 and 2021. Most focused on sarbecoviruses and targeted healthcare policymakers and governments. System dynamics approaches were the most used methods. Most of the studies incorporated the classical epidemiological models alongside systems-oriented methods. The studies were conducted in context of diseases dynamics and its burden on human health, the economy and healthcare systems. The most reported challenge was epidemiological and geographical data timeliness and quality. Conclusions: Systems dynamics approaches can help policy makers understand the elements of a complex system and thus offer potential solutions for preventing and controlling EIDs.
Abstract A theoretical multivariate study was conducted in order to formulate an expression that relates electrical resistivity to the number of blows in the Dynamic Probing Super Heavy test. Improving further recent studies, this new expression shows a relatively good correlation between these two variables, enhanced by the multivariate analysis. It implies that robust correlations may only be drawn locally for specific field site, where the rest of the involved variables remain constant. In the search for a more general correlation, Electrical Resistivity Tomography and Dynamic Probing Super Heavy tests were performed to measure resistivity and soil resistance simultaneously at different field sites, in order to verify the results of the multivariate theoretical study. The results show that there is a qualitative relationship between these values but a quantitative relationship is only possible at the same field site, which coincides with the results of the theoretical study.