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Alex S. Ribeiro, Luiz C. Pereira, Danilo R.P. Silva, Leandro dos Santos, Brad J. Schoenfeld, Denilson C. Teixeira, Edilson S. Cyrino and Dartagnan P. Guedes

The purpose of the study was to clarify the independent association between sedentary behavior and physical activity with multiple chronic diseases and medicine intake in older individuals. Sedentary behavior and physical activity were measured by questionnaires. Diseases and medication use were self-reported. Poisson’s regression was adopted for main analysis, through crude and adjusted prevalence ratio and confidence interval of 95%. For men, sedentary time >4 hr/day presented a 76% higher prevalence of ≥2 chronic diseases, while physical inactivity increases the likelihood of using ≥2 medicines in 95%. For women, sedentary behavior >4 hr/day presented an 82% and 43% greater prevalence for ≥2 chronic diseases and the intake of ≥2 medicines, respectively. Sedentary behavior represents an independent associated factor of multiple chronic diseases in older men and women. In addition, inactivity for men and sedentarism for women are associated with the amount of medicine intake.

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João Pedro Nunes, Alex S. Ribeiro, Analiza M. Silva, Brad J. Schoenfeld, Leandro dos Santos, Paolo M. Cunha, Matheus A. Nascimento, Crisieli M. Tomeleri, Hellen C.G. Nabuco, Melissa Antunes, Letícia T. Cyrino and Edilson S. Cyrino

The aim of this study was to analyze the association between muscle quality index (MQI) and phase angle (PhA) after a program of progressive resistance training (RT) in older women. Sixty-six older women with previous RT experience (68.8 ± 4.6 years, 156.6 ± 5.3 cm, 66.0 ± 13.0 kg, and 26.7 ± 4.6 kg/m2) underwent 12 weeks of RT (3 ×/week, eight exercises, and 10–15 repetition maximum). Anthropometry, muscular strength (one-repetition maximum tests), and body composition (dual-energy X-ray absorptiometry and spectral bioimpedance) were measured pre- and posttraining. There were observed significant increases for PhA, MQI, muscular strength, muscle mass, and reactance, whereas no significant changes in body fat and resistance were found. A significant correlation was observed between the RT-induced relative changes in PhA and MQI (r = .620). We conclude that improvements in MQI induced by RT are associated with increases in PhA. Therefore, PhA may be a valid tool to track changes in MQI after 12 weeks of RT in older women.

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Nelson Nardo Jr., Diego Augusto Santos Silva, Gerson Luis de Moraes Ferrari, Edio Luiz Petroski, Ricardo Lucas Pacheco, Priscila Custódio Martins, Luis Carlos Oliveira, Timóteo Leandro Araújo, Anselmo Alexandre Mendes, Samara Pereira Brito Lazarin, Tamires Leal Cordeiro dos Santos and Victor Matsudo

Background:

Very few studies have comprehensively analyzed the physical activity of children and adolescents in Brazil. The purpose of this article is to show the methodology and summarize findings from the first Brazilian Report Card on Physical Activity for Children and Youth.

Methods:

Three Brazilian research institutions coordinated the activities to develop the Brazilian 2016 Report Card. The data available were collected independently and then synthesized by the Research Work Group using the grade system developed for the First Global Matrix released in 2014, which included 9 indicators of physical activity. Where possible, grades were assigned based on the percentage of children and youth meeting each indicator: A is 81% to 100%; B is 61% to 80%; C is 41% to 60%; D is 21% to 40%; F is 0% to 20%; INC is incomplete data.

Results:

Among the 9 indicators, only 5 had sufficient data for grading. Overall Physical Activity received a C- grade, Active Transportation received a C+ grade, Sedentary Behavior received a D+ grade, and Government Strategies and Investments received a D grade.

Conclusions:

The low grades observed highlight the need for continued efforts aimed at improving physical activity in Brazilian children.