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  • Author: Mariana Almeida x
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Jorge Mota, Nuno Delgado, Mariana Almeida, José Carlos Ribeiro and Maria Paula Santos

Background:

The purpose of this study was 1) to compare physical activity levels according to body-mass index; 2) to determine which, if any, neighborhood perceived attributes were related to overweight.

Methods:

The sample comprised 610 girls age 14.7 ± 1.6 y. Girls were grouped into normal weight and overweight. Environmental variables and physical activity were assessed by questionnaire.

Results:

No significant differences were found in physical activity levels between normal weight and overweight girls. Logistic regression analysis revealed that girls who agreed that “there is so much traffic on the streets that it makes it unpleasant to walk in the neighborhood” were more likely to be overweight (OR = 1.78; 95% CI 1.10 to 2.89).

Conclusion:

The study found no relationship between perceptions of the environment and overweight among Portuguese girls, except for perceptions of security for walking in the neighborhood.

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Jorge Mota, Helena Gomes, Mariana Almeida, José Carlos Ribeiro and Maria Paula Santos

This study analyzes the relationships between leisure time physical activity (LTPA), sedentary behaviors, socioeconomic status, and perceived environmental variables. The sample comprised 815 girls and 746 boys. In girls, non-LTPA participants reported significantly more screen time. Girls with safety concerns were more likely to be in the non-LTPA group (OR = 0.60) and those who agreed with the importance of aesthetics were more likely to be in the active-LTPA group (OR = 1.59). In girls, an increase of 1 hr of TV watching was a significant predictor of non-LTPA (OR = 0.38). LTPA for girls, but not for boys, seems to be influenced by certain modifiable factors of the built environment, as well as by time watching TV.

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Mariana Luciano de Almeida, Francine Golghetto Casemiro, Camila Tiome Baba, Diana Monteiro, Mariana Fornazieri, Natália Cerri, Daniele Frascá Martins Fernandes and Grace Angélica de Oliveira Gomes

Background: Some studies have used the follow-up method to analyze real behavioral changes in research involving physical activity (PA) interventions. This has great scientific value; however, it is hard to apply without satisfactory resources and research funding. Little is known about how many studies have used this method to analyze PA interventions in low-income and middle-income countries, especially Brazil. Purpose: To describe Brazilian studies using follow-up analysis after PA interventions. Methods: A systematic review was performed including Brazilian studies with follow-up analysis after PA interventions; the analyzed papers were from the previous 10 years. The search was carried out in Portuguese, English, and Spanish in the following databases: SciELO, Latin American and Caribbean Health Science Literature, PubMed, and Scopus. The Preferred Reporting Items for Systematic Review and Meta-Analysis method was used. Results: In total, 6 of the 7 studies analyzed were from the southeast region, with the intervention time ranging from 2 to 12 months, carrying out follow-up every 5.3 months with 2.2 observations on average. The interventions had a behavioral approach and were generally carried out in universities, hospitals, and ambulatory care. Conclusion: Studies on PA interventions using follow-up analysis are scarce. Considering the relevance of follow-up studies to measure behavior changes, the results suggest that more studies about this topic are essential in Brazil.