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Introduction: Activity breaks or physical exercise interventions in schools are linked to better cognitive function in adolescents. However, few studies have evaluated the relationship between physical exercise and cognition in rural schools, where drop-out levels tend to be higher and academic achievement lower. Objective: To analyze the effects of a physical exercise class (PE) on subsequent academic performance of students, and how they felt during mathematics (MATH) and Portuguese language (PL) tests. Methods: Thirty-six students (14.9 ± 1.5 years) randomly carried out 30 min of PE, performed at 74.3 ± 11.8%HRmax, while a control group (CON) remained seated watching a movie, prior to the tests (PE-MATH; PE-PL; CON-MATH; CON-PL). Results: The PE-MATH group presented higher scores (5.3 ± 2.2) than the CON-MATH group (4.0 ± 2.2). The tests were completed more quickly in PE-PL (7.8 ± 3.3 minutes) than in CON-PL (10.5 ± 4.2 minutes). The number of correct answer per minute was higher in PE-MATH and PE-PL (0.52 ± 0.25; 0.64 ± 0.51) than in CON-MATH and CON-PL (0.35 ± 0.19; 0.41 ± 0.41). Furthermore, 38.9% of PE-MATH felt more focused during the test, while only 16.7% of CON-MATH felt more focused. During the Portuguese language test, 27.8% of CON-PL complained of greater apprehensiveness, compared to 8.3% for PE-PL. Also, 36.1% reported feeling fatigued during PL after PE, compared to 8.3% in the CON-PL group. Conclusions: PE improved the adolescents' academic performance. Despite feeling fatigue, more students who performed physical exercise felt less apprehensive and more focused during the tests after PE. Level of evidence I; STARD: studies of diagnostic accuracy.

Este artigo apresenta o desenvolvimento de um sistema que utiliza realidade virtual para simular ambientes e situações que possam auxiliar no processo de reabilitação motora do equilíbrio de pacientes com disfunção dessa habilidade. O sistema tem o objetivo de tornar o tratamento desse problema mais estimulante, uma vez que os métodos convencionais do tratamento podem ter uma longa duração e serem bastante repetitivos, levando os pacientes a acharem o mesmo cansativo e desanimador. Para isso o sistema possui 3 (três) ambientes virtuais onde cada um possibilita o usuário de praticar exercícios de equilíbrio estático e dinâmico.

Introdução: A Qualidade de Vida (QV) está relacionada a interações de aspectos fí­sico, psicológico, social e ambiental do ser humano. Com o aumento da expectativa de vida em todo o mundo, surgiu a necessidade de se desenvolver estratégias para manutenção da QV durante o envelhecimento. Os exergames têm sido considerados uma possibilidade de intervenção lúdica para manutenção e melhora da QV em todas as idades. Objetivo: Avaliar a influência de exergames que utilizam o Kinect sobre a QV de idosos sedentários. Métodos: Seis idosos (n = 2M; n = 4F; 64,83 ± 4,07 anos) participaram de 2 sessões semanais de 30 min de atividade de jogos com Kinect durante seis meses. A versão curta do questionário World Health Organization Quality of Life (WHOQOL) foi aplicada pré e pós-intervenção. Resultados: Tanto a QV Geral quanto o Domí­nio Ambiental melhoraram significativamente após a intervenção (67,72 ± 10,95 vs. 70,82 ± 9,10, p = 0,01; 55,38 ± 3,50 vs. 64,06 ± 6,47, p = 0,02) respectivamente. Já os domí­nios Fí­sico e Psicológico não apresentaram alteração significativa após a intervenção (67,26 ± 19,35 vs. 72,02 ± 15,87, p = 0,45; 70,13 ± 22,42 vs. 73,61 ± 7,75, p = 0,69) respectivamente. Conclusão: A intervenção com jogos de videogame ativo com Kinect interferiu positivamente na QV geral e no domí­nio ambiental dos idosos participantes do estudo.Palavras-chave: qualidade de vida, idoso, exergames.

Objetivo: Comparar o efeito de exercí­cios de Pilates realizados no solo (PS) e na água (PA) sobre a glicemia de mulheres portadoras de diabetes tipo 2 (DM2). Métodos: Oito voluntárias (62,4 ± 7,9 anos) realizaram uma sessão de PS, PA e controle (CO) com duração de 30 min. A glicemia foi mensurada durante o repouso pré-sessão, imediatamente após (IA), aos 15 e 30 min da sessão e aos 15 min de recuperação após a sessão (15"™rec). Resultados: Redução significativa (p < 0,05) da glicemia foi observada na sessão PA nos momentos IA (-41 mg/dl) e aos 15"™rec (-57 mg/dl) quando comparada com o repouso pré-sessão. Porém, o mesmo não foi observado na sessão PS. Conclusão: A sessão de PA durante 30 min promoveu redução da glicemia capilar durante e nos primeiros 15"™rec em mulheres portadoras de DM2, enquanto que a sessão PS não.Palavras-chave: diabetes mellitus, Pilates, glicemia.

Introduction: Motor development is associated with many physical, emotional and cognitive factors of children and virtual environments, such as active video games, maybe an innovative and motivating alternative. Objective: The aim of this study was to investigate the effects of a five-day of table tennis training in virtual environment on the performance of serve of in real space. Material and Method: Two groups (experimental and control) with children aged 9.32±0.6 years old participated in the study. The experimental group practiced the serve of table tennis in the active videogame daily for five days. After the intervention, all volunteers underwent a test in the traditional table and, and were verified the amount of hits each child. Results: no significant differences (p>0.05) in the amount of hits between the groups were found, as well as a low magnitude of the effect of the difference. Conclusions: The results suggest that short-term training of table tennis in active videogame does not seem to improve performance in the serve of children.

Introduction: Physical activity has become less frequent since the 1980s, even among more active children. Objective: To analyze excess post-exercise oxygen consumption (EPOC) and total energy expenditure (TEE) in children during and after three different activities. Methods: Sixteen healthy children (9.6±0.1 yrs.) randomly underwent the following procedures lasting 30 minutes on different days: (a) traditional games (PLAY), (b) active video game (Dance Dance Revolution; DDR), and (c) watching television (TV). Oxygen consumption (VO2) was measured at rest, at the 10th, 20th, and 30th minute of intervention, and for 40 minutes post-intervention. TEE was also measured. Results: At the end of intervention, VO2 had increased by 330% and 166% for PLAY and DDR, respectively, compared to the rest. EPOC in PLAY was seen to occur at the 10th, 20th, and 30th post-interventional minutes from 7.00±1.02 (at rest) to 10.83±0.94, 10.03±0.58, and 9.80±0.77mL.kg-1.min-1, respectively. However, EPOC in DDR occurred at only the 10th postinterventional minute (7.04 to 8.61 mL.kg-1.min-1; p