Preventing obesity among Brazilian adolescent girls: Six-month outcomes of the Healthy Habits, Healthy Girls–Brazil school-based randomized controlled trial

Leme, Ana Carolina Barco; Lubans, David R.; Guerra, Paulo Henrique; Dewar, Deborah L.; Toassa, Erika Christiane; Philippi, Sônia Tucunduva

doi:10.1016/j.ypmed.2016.01.020

Cited by 59 publications

(138 citation statements)

References 37 publications

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Section: Discussionsupporting

confidence: 89%

“…These findings corroborate with a study that evaluated the effect of an intervention on different components of screen time in girls from São Paulo 7 . After six months of intervention, the authors verified that there was a significant reduction in computer time spent at the weekend 7 . In general, the use of these components of the screen time (computer/video game) is performed in an individualized way by the adolescent, for example, without the presence of family members.…”

Section: Discussionsupporting

confidence: 89%

“…In the Brazilian scenario, in an intervention developed with the purpose of preventing obesity in girls, there was a significant reduction of 38 minutes/day in computer use at the weekend 7 . On the other hand, an intervention aimed at the promotion of physical activity was not able to significantly reduce the screen time of schoolchildren 8 .…”

Section: Introductionmentioning

confidence: 99%

“…Interventions in the school context can help reduce screen time in the young population. de TV (rapazes: OR = 2,86; IC95%: 1,[6][7]71) e computador/videogame (moças: OR = 3,34; IC95%: 1,84; 11 a 13 anos: OR = 3,08; IC95%: 1,08) para < 2 horas/dia (p < 0,05 Bandeira et al Rev Bras Ativ Fís Saúde 2018;23:e0005 Effect of an intervention on variables related to screen time …”

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confidence: 99%

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Effect of a multicomponent intervention on variables related to screen time in adolescents: a cluster-randomized controlled trial

Bandeira

Silva

Sá

et al. 2018

Rev Bras Ativ Fís Saúde

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The aim of this study was to evaluate the effect of an intervention on screen time and on psychosocial factors (Attitude, self-efficacy, support of family and school members) associated with reduced screen time in students. A cluster-randomized controlled trial was conducted in three schools in the intervention group (n = 548) and three in the control group (n = 537). The intervention focused on teacher training, opportunities for practicing physical activity at school and reducing screen time, as well as health education. The questionnaire (applied in July and December 2014) included questions about time using TV and computer / video game on weekdays and weekend days (Combined in fullscreen time). The psychosocial factors were obtained through scales. The control variables were school and income. The analysis included binary logistic regression models and generalized linear models. The effect size was calculated with analyzes stratified by sex and age (p < 0.05). The intervention group reduced TV (boys: OR = 2.86; CI95%: 1.06-7.71) time and computer/video game (girls: OR = 3.34; CI95%: 1.14-9.84; 11 to 13 years: OR = 3.08; CI95%: 1.17-8.08) for < 2 hours / day (p < 0.05). Positive effects of the intervention were observed on attitude (among girls and adolescents of both age groups) and school support (all subgroups), with effect sizes ranging from 0.21 to 0.54. We concluded that the intervention caused improvements in certain components of the screen time, as well as attitude and school support. Interventions in the school context can help reduce screen time in the young population. de TV (rapazes: OR = 2,86; IC95%: 1,[6][7]71) e computador/videogame (moças: OR = 3,34; IC95%: 1,84; 11 a 13 anos: OR = 3,08; IC95%: 1,08) para < 2 horas/dia (p < 0,05 Bandeira et al. Rev Bras Ativ Fís Saúde 2018;23:e0005 Effect of an intervention on variables related to screen time RESUMO O objetivo desse estudo foi avaliar o efeito de uma intervenção sobre tempo de tela e em fatores psicossociais (atitude, autoeficácia, suporte da família e dos membros da escola) associados à redução do tempo de tela em escolares. Ensaio randomizado controlado por conglomerado realizado em três escolas no grupo intervenção (n = 548) e três no grupo controle (n = 537). A intervenção focou na capacitação de professores, oportunidades para prática de atividade física na escola e redução do tempo de tela, bem como educação em saúde. O questionário (aplicado em julho e dezembro de 2014) incluiu questões sobre tempo usando TV e computador/ videogame em dias de semana e fim de semana (combinados em tempo de tela total). Os fatores psicossociais foram obtidos por meio de escalas. As variáveis de controle foram escola e classe econômica. A análise incluiu modelos de regressão logística binária e modelos lineares generalizados. O tamanho do efeito foi calculado, com análises estratificadas por sexo e faixa etária (p < 0,05). Após o acompanhamento, escolares da intervenção tiveram maiores chances de reduzir o tempo

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of a multicomponent intervention on variables related to screen time in adolescents: a cluster-randomized controlled trial

Bandeira

Silva

Sá

et al. 2018

Rev Bras Ativ Fís Saúde

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“…It is also considered important to reduce cardiovascular risk factors, such as obesity combined with elevated blood pressure and glucose levels, and lipid abnormalities 1,8 . In Brazil, few school interventions on physical/nutritional activities have been performed to reduce health risk factors 9. Some results should be highlighted, such as the significant body fat reduction observed in all studies [10][11][12][13][14][15] , positive changes in blood parameters, and improvement in physical abilities and blood pressure.…”

Section: Introductionmentioning

confidence: 99%

The effects of an after-school intervention program on physical activity level, sedentary time, and cardiovascular risk factors in adolescents

Guimarães

Silva

Martini

et al. 2017

Motriz: rev. educ. fis.

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-Aim:To ascertain the effects of an after-school intervention on physical activity levels and cardiovascular risk factors in adolescents from Campinas, Brazil. Methods: This was an intervention study with 71 adolescents that was carried out in two schools, randomly assigned to a control group (CG:n=45) or an intervention group (IG:n=26).We performed evaluations of body composition, sexual maturation, blood pressure, level of physical activity, sedentary time (ST), and eating habits, as well as biochemical variables by a portable analyzer. The IG participated in two weekly sessions of physical activities and controlled physical exercises for 14 weeks. The sessions lasted 60', and were divided into warm-up (5-10'), main part (40-50'), and recovery (5-10'). Results: 30.8% of the IG and 24.4% of the CG were classified as overweight/obese. Additionally, the IG showed significantly lower ST (total: p=0.037; daily:p=0.009) after the intervention, as well as in the post-period (total ST: p=0.043; daily ST: p=0.007). The IG showed a reduction in glycemia (p=0.025). Conclusion: The intervention program generated positive changes in glycemia levels and ST. These results suggest that interventions involving physical exercise should be promoted in the school environment, as physical activity is an important component of a healthy lifestyle.

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Interventions for preventing obesity in children

Brown

Moore

Hooper

et al. 2019

Cochrane Database of Systematic Reviews

1,214

659

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Background Obesity prevention is an international public health priority. The prevalence of obesity and overweight is increasing in child populations throughout the world, impacting on short and long-term health. Obesity prevention strategies for children can change behaviour but efficacy in terms of preventing obesity remains poorly understood. Objectives To assess the effectiveness of interventions designed to prevent obesity in childhood through diet, physical activity and/or lifestyle and social support. Search strategy MEDLINE, PsycINFO, EMBASE, CINAHL and CENTRAL were searched from 1990 to February 2005. Non-English language papers were included and experts contacted. Selection criteria Randomised controlled trials and controlled clinical trials with minimum duration twelve weeks. Data collection and analysis Two reviewers independently extracted data and assessed study quality. Main results Twenty-two studies were included; ten long-term (at least 12 months) and twelve short-term (12 weeks to 12 months). Nineteen were school/preschool-based interventions, one was a community-based intervention targeting low-income families, and two were familybased interventions targeting non-obese children of obese or overweight parents. Six of the ten long-term studies combined dietary education and physical activity interventions; five resulted in no difference in overweight status between groups and one resulted in improvements for girls receiving the intervention, but not boys. Two studies Interventions for preventing obesity in children (Review)

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Preventing obesity among Brazilian adolescent girls: Six-month outcomes of the Healthy Habits, Healthy Girls–Brazil school-based randomized controlled trial

Cited by 59 publications

References 37 publications

Effect of a multicomponent intervention on variables related to screen time in adolescents: a cluster-randomized controlled trial

Effect of a multicomponent intervention on variables related to screen time in adolescents: a cluster-randomized controlled trial

The effects of an after-school intervention program on physical activity level, sedentary time, and cardiovascular risk factors in adolescents

Interventions for preventing obesity in children

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