The aim of this study was to evaluate the reliability and agreement between the test and retest of the 10-repetition maximum (10-RM) test for leg press and bench press in breast cancer survivors (BCS). Thirty-one BCS participated in this study, age 54.87 ± 5.7 years. All performed 10-RM tests and retests for the leg press 45° and the bench press. For reliability analyses, an intraclass coefficient correlation (ICC) and coefficient of variation (CV) were performed. The limits of agreement were calculated using a Bland-Altman plot with 95% CIs. For absolute and relative error of measurement, we used standard error of measurement and minimally detectable change. The result showed a high reliability for the bench press and leg press; ICC of 0.94 and 0.98, respectively. CV was <10% for both exercises. The systematic error were 1.5 kg (10%) and 6.1 (8%) for the bench press and leg press, respectively. The standard errors of measurements were 0.96 kg (6.08%) and 4.11 kg (5.27%) for the bench press and leg press, respectively. The minimally detectable changes were 2.72 kg (17.20%) and 5.62 kg (7.21%) for the bench press and leg press, respectively. In breast cancer survivors, the muscular strength measurement for the 10-RM test showed a high to very high rate of reliability and agreement, with acceptable error of measurement.

Objective: To evaluate the hydration of obese and non-obese adolescents by vectorial bioimpedance analysis, in addition to verifying the associations between obesity and bioelectrical impedance vectorial analysis (BIVA) parameters. Methods: A cross-sectional study with adolescents between 14 and 18 years old (n=489, 300 boys and 189 girls). Electric bioimpedance (BIA; Quantum_II, RJL system, Rome, Italy) provided resistance and reactance parameters to calculate phase angle (PA), fat-free mass (FFM) and body fat (%BF). The confidence ellipses were compared, and the construction of the tolerance ellipses allowed individual and qualitative evaluation of the vectors and classification in dehydrated, normohydrated and hyperhydrated. Results: 78 obese and 411 eutrophic adolescents participated. Resistance (p<0.001) and reactance (p<0.001) and their normalization by stature (p<0.001) were reduced in the obese, whereas the PA was higher (p=0.003). %BF was 11.3% higher in obese adolescents. The main vector of the obese, both male (D=1.38; p<0.001) and female (D=1.49; p<0.001), indicated greater hydration. The ellipse of tolerance of the total sample showed that 25 (32.1%) were hyperhydrated and 02 (2.6%) vectors positioned in the sense of dehydration. A total of 17 (53.2%) girls and 16 (34.8%) boys were hyperhydrated. Logistic regression showed an inverse relation of BMI with resistance (p<0.001), reactance (p<0.001) and both normalized by stature. Adolescents with increased PA (p<0.001) were twice as likely to present obesity. Conclusions: Obese adolescents were hyperhydrated and there was an inverse relationship of BMI with resistance and direct with PA.

Exceto onde especificado diferentemente, a matéria publicada neste periódico é licenciada sob forma de uma licença Creative Commons -Atribuição 4. RESUMOObjetivo: verificar a resposta da pressão arterial (no decorrer de 24h) após uma sessão de HIIT com o protocolo Tabata, bem como o comportamento da frequência cardíaca nesse período. Método: foram avaliados 17 indivíduos de ambos os sexos (seis homens e 11 mulheres) com idades entre 16 e 37 anos, que realizaram o protocolo de HIIT Tabata em cicloergômetro, sendo mensurada a pressão arterial e a frequência cardíaca dos mesmos, em repouso, após o aquecimento, logo após a realização do protocolo, após cinco, dez, 20, 30, 40, 50 e 60 minutos e 24 horas. Os dados obtidos foram comparados através da ANOVA para medidas repetidas, e para determinar e avaliar as diferenças foi utilizado o post hoc de Bonferroni, adotando uma significância de p ≤0,05. Resultados: foi identificado que há uma resposta hipotensora da pressão arterial sistólica a partir de 40 minutos, porém sem diferenças em 24 horas, sem diferenças significantes para diastólica, com o comportamento da frequência cardíaca dentro do esperado no período pós-HIIT. Considerações finais: no presente estudo, o HIIT gerou resposta hipotensora a partir de 40 minutos, após o término de sua execução e essa se mantem constante até o período de 60 minutos na pressão arterial sistólica. Este comportamento não foi encontrado na pressão arterial diastólica e, a frequência cardíaca, apresentou o comportamento de acordo com o esperado para outros protocolos de esforço físico moderado a intenso. INTRODUÇÃOPressão sanguínea corresponde à força que o sangue exerce contra qualquer parede de vasos, gerando uma pressão ou tensão nos mesmos.1 A Pressão Arterial possui um comportamento inconstante, durante o dia e varia de acordo a necessidade de maior ou menor tensão nos vasos, que relacionado ao comportamento físico, como parado, andando, correndo e emocional.

Objective: The aim of this study is to compare the effects of resistance training (RT) on muscle strength (MS), body composition (BC), and anxiety indicators in eutrophic, overweight, and obese breast cancer survivors (BCS). Methodology: Twentysix BCS women (56.07±6.94 years old; body mass index [BMI]: 68.29±11.18 kg), who were undergoing hormone therapy, performed 8 weeks of RT once a week. The BCS were divided into three groups as follows: eutrophic (BMI ≤ 24.4 [23.72±1.41], n=9), overweight (BMI 25–29.9 [27.21±1.26], n=9), and obese (BMI ≥ 30 [33.37±2.06], n=8). For the MS, the 10-repetition maximum test (normalized 10-RM/BM) on the bench press (BP) and the leg press (LP); for BC, the dual-energy X-ray absorptiometry; and for anxiety, the state-trait anxiety inventory were performed. For overtime analysis, the paired t-test for MS and BC and the Wilcoxon test for anxiety indicators were conducted. For analyses between groups, the mean difference (∆ [post-baseline]) was calculated using the one-way analysis of variance for MS and BC and the Kruskal– Wallis test for anxiety indicators. Results: There were no differences between the groups. All groups improved on the BP (p≤0.001) and the LP (p<0.001) overtime (eutrophic [BP, ∆=0.050±0.03; LP, ∆=0.401±0.10], overweight [BP, ∆=0.069±0.03; LP, ∆=0.406±0.15], and obese [BP, ∆=0.037±0.02; LP, ∆=0.375±0.11]). In the BC analyses, it was verified and improved only for the eutrophic BCS in the fat percentage (∆=-1.122±1.11, p=0.016) and lean mass (∆=0.650±0.78, p=0.036). There was a significant reduction in the state-trait anxiety in the eutrophic (∆=-7.444±8.13, p=0.030) and obese (∆=-9.125±9.70, p=0.042) groups. Conclusions: All BCS groups improved their MS. The eutrophic BCS may have a better response in BC compared with overweight and obese BCS. With regard to state-trait anxiety, the eutrophic and obese BCS groups showed better response than the overweight BCS group. The results suggest that the eutrophic BCS can present improvements in more components with a weekly session of RT; however, further studies should be performed.

RESUMOObjetivo: comparar as alterações psicomotoras por meio das aulas de Educação Física, em crianças de 8 a 9 anos de uma escola municipal de Anápolis-Go. Método: a amostra foi composta por 31 alunos de uma escola municipal de Anápolis-GO. Incluiu a realização da bateria psicomotora de Oliveira, que avaliou coordenação motora, equilíbrio, esquema corporal, lateralidade, estruturação espaço-temporal. Houve uma intervenção de 06 meses, e duas avaliações pré e pós. A amostra foi submetida a duas aulas de Educação Física por semana, com duração de 50 minutos, envolvendo atividades lúdico-recreativas, com base nas necessidades encontradas no primeiro teste, finalizando com a reavaliação psicomotora a fim de constatar as alterações ocorridas durante a intervenção. Foi realizado o test "t de Mann--Whitney para comparar o pré e pós avaliação por meio do software SPSS 21.0, com nível de significância de p≤0,05. Resultados: constatou-se que as crianças analisadas se encontravam dentro da faixa de aprendizagem. Melhoras significativas na coordenação motora e equilíbrio, no esquema corporal e na estrutura espacial foram observadas a partir da intervenção psicomotora de seis meses.