Abstract Introduction: dual-energy X-ray absorptiometry (DXA) is the gold standard method, although one limitation is the size of the scan area. Objective: the objective was to verify the accuracy of body composition (BC) scanning through half-body DXA scanning compared to standard total body scanning. Methods: a study was conducted on 145 volunteers. Weight and height were assessed. Body mass index (BMI) was calculated. DXA was used for whole-body scan (WBS) and half-body scan (HBS). WBS was used as the reference method and the following indicators were extracted: bone mineral content (BMC), fat mass (FM), lean soft tissue (LST) and percentage fat mass (%FM). Results: no differences were observed in the body composition indicators (BMC, FM, LST and %FM) when compared between the reference WBS scanner and the HBS scanner. The predictive power between both scans ranged in both sexes between R2 = 0.94 and 0.98. The DRI desirable reproducibility index values defining the degree of agreement between both scans ranged from 0.97 to 0.99, and the values for precision (0.97 to 0.99) and accuracy (0.99) were high. Conclusion: HBS scanning by DXA evidenced agreement, and high values of accuracy and precision to assess body composition indicators (BMC, FM, LST and %FM).

Resumen Introducción: la absorciometría de rayos X de doble energía (DXA) es el método de referencia, aunque una limitación es el tamaño del área de exploración. Objetivo: el objetivo fue verificar la precisión de la exploración de la CB mediante la exploración DXA de medio cuerpo en comparación con la exploración estándar de todo el cuerpo. Métodos: se realizó un estudio con 145 voluntarios. Se evaluaron el peso y la altura. Se calculó el índice de masa corporal (IMC). Se utilizó la DXA para la exploración de cuerpo entero (WBS) y la exploración de medio cuerpo (HBS). Se utilizó la PEP como método de referencia y se extrajeron los siguientes indicadores: contenido mineral óseo (CMO), masa grasa (MG), tejido blando magro (TBL) y porcentaje de masa grasa (%MG). Resultados: no se observaron diferencias en los indicadores de composición corporal (BMC, FM, LST y %FM) cuando se compararon entre el escáner WBS de referencia y el escáner HBS. El poder predictivo entre ambos escáneres osciló en ambos sexos entre R2 = 0,94 y 0,98. Los valores del índice de reproducibilidad deseable DRI que definen el grado de acuerdo entre ambas exploraciones oscilaron entre 0,97 y 0,99, y los valores de precisión (0,97 a 0,99) y exactitud (0,99) fueron altos. Conclusión: la exploración de HBS mediante DXA evidenció concordancia y altos valores de exactitud y precisión para evaluar los indicadores de composición corporal (BMC, FM, LST y %FM).

ABSTRACT Objective: Herein, we compared ambulatory blood pressure (ABP) between young adults with congenital adrenal hyperplasia (CAH) due to 21-hydroxylase enzyme (21OHase) deficiency and a control group. Additionally, we analyzed correlations between the glucocorticoid dose and androgen levels and ABP parameters. Subjects and methods: This case-control study included 18 patients (6 males and 12 females) and 19 controls (8 males and 11 females) matched by age (18-31 years). ABP monitoring was used to estimate blood pressure (BP) over a 24-h period. Results: No difference was noted between patients and controls in terms of systolic BP (males, 115.5 ± 5.6 vs. 117.0 ± 9.3, P = 0.733; and females, 106.4 ± 7.9 vs. 108.4 ± 7.6, P = 0.556, respectively) and diastolic BP during 24 h (males, 62.8 ± 7.5 vs. 66.2 ± 5.6, P = 0.349; and females, 62.7 ± 4.9 vs. 62.3 ± 4.9, P = 0.818, respectively). Systolic and diastolic BP and pulse pressure during daytime and nocturnal periods were similar between patients and controls. Furthermore, no differences were detected in the percentage of load and impaired nocturnal dipping of systolic and diastolic BP between patients and controls during the 24-h period. Additionally, the glucocorticoid dose (varying between r = −0.24 to 0.13, P > 0.05) and androgens levels (varying between r = 0.01 to 0.14, P > 0.05) were not associated with ABP parameters. Conclusion: No signs of an elevated risk for hypertension were observed based on ABP monitoring in young adults with CAH attributed to 21OHase deficiency undergoing glucocorticoid replacement therapy.

Abstract The paper provides an etnography of interactions of the online community formed by housewives in the social network Instagram. It seeks to understand how the visibility of images associated with housework in this social media updates its meanings in contrast to its historical invisibilization. We argue that while the online community generates recognition by portraying the daily life and disseminating housewives’ knowledge, the dynamics and marketing in this technological platform reaffirms the domestic environment as a predominantly feminine space.

Resumo O artigo traz uma netnografia das interações da comunidade online formada por donas de casa na rede social Instagram buscando compreender como a visibilidade das imagens associadas ao trabalho doméstico na internet atualiza sentidos em contraste a sua invisibilização histórica. Argumentamos que a comunidade online gera reconhecimento retratando o cotidiano e disseminando saberes práticos de donas de casa; ao mesmo tempo que a dinâmica e o próprio conteúdo das postagens, junto com o marketing nessa plataforma tecnológica, reafirmam o âmbito doméstico como espaço predominantemente feminino.

Resumo O trabalho analisa duas edições da revista Elle Brasil que abordaram temáticas feministas em 2015. Destinada ao público feminino consumidor de moda, o feminismo foi incorporado à revista em aparente contradição com os conteúdos convencionais e valores afirmados em sua linha editorial. Porém, essa incorporação do feminismo não configura uma novidade, mas uma experiência de continuidade na história da imprensa feminina brasileira, a que chamamos de ‘feminismo estilo magazine’, pautada agora, porém, pela influência das redes sociais. Para compreender as ambiguidades e potencialidades políticas dessa dicotomia mobilizamos abordagens construcionistas em uma análise da revista como formadora de opinião.

Abstract The paper analyzes two editions of the Elle Brasil magazine that focused on feminist themes in 2015. Intended for female fashion consumers, feminism was incorporated to the magazine, in apparent contradiction with the conventional contents and values affirmed by its editorial line. This was not a novelty, but an experience of continuity that echoes the history of the Brazilian women's press. We call this 'magazine style feminism', which is now influenced by social media. To understand the ambiguities and political potential of this dichotomy, we used constructional approaches, based on an analysis of the magazine as an trendsetter.

Resumo Otimizar o ganho da massa óssea durante a infância e adolescência pode auxiliar na prevenção de doenças ósseas em idades mais avançadas. Objetivou-se verificar a densidade mineral óssea (DMO) e conteúdo mineral ósseo (CMO) em adolescentes do sexo feminino. Foi realizado um estudo transversal com 68 meninas adolescentes (12 a 17 anos), divididas em dois grupos: jogadoras de handebol (HG: n=29) e grupo controle (CG: n=39). DMO e CMO de corpo inteiro (TB), corpo total menos cabeça (TBLH), coluna lombar (L1-L4), colo do fêmur (FN) e triângulo de Ward’s (WT) e respectivos escore Z foram medidos usando a absorciometria por dupla emissão de raios-x (DXA). Também foi avaliada a maturidade sexual, menarca, PVC e ingestão de cálcio e vitamina D. As jogadoras de handebol mostraram valores de CMO, DMO e respectivos escores Z do corpo inteiro, TBLH, fêmur, quadril e coluna lombar significativamente maiores quando comparados ao grupo controle. Quando ajustados para a massa isenta de gordura o grupo HG apresentou valores maiores para o CMO do fêmur e DMO do fêmur e TBLH; e nos valores de escore Z de todos os sítios ósseos, exceto o quadril, quando comparadas ao CG. Concluímos que as jogadoras de handebol têm valores de massa óssea significativamente maiores comparadas ao grupo de meninas da mesma idade.

Abstract Optimizing bone mass gain during childhood and adolescence may help prevent bone diseases in advanced ages. The aim of this study was to verify the bone mineral density (BMD) and bone mineral content (BMC) in female adolescent’s handball players. This is a cross-sectional study where 68 female adolescents (12–17 years) were allocated into two groups: handball players (n = 29) (HG) and control group (n = 39) (CG). BMC and BMD from total body (TB), total body less head (TBLH), lumbar spine (L1–L4), femoral neck (FN), Ward’s triangle (WT) and respectively Z-scores were measured using dual-energy X-ray absorptiometry (DXA). Sexual maturity, menarche, PHV, time of sun exposure, physical activity level and Calcium and vitamin D intake were assessed. The HG showed significantly higher BMC, BMD as well Z-scores values (p≤0.05) of total body, TBLH, femoral neck, hip and lumbar spine than the CG. When the values were adjusted for lean soft tissue (LST) the HG showed significantly higher BMC of femoral neck (p≤0.05), as well as BMD of TBLH and femoral neck (p≤0.05) and Z-score values all bone sites except hip, than the CG. We conclude that handball players have significantly higher bone mass values compared to group of girls of the same age.

Resumo Este estudo teve como objetivo verificar a interferência do consumo de diferentes bebidas artesanais a base de carboidratos durante o treinamento sobre as concentrações plasmáticas de lactato e glicose e sensação afetiva de atletas da modalidade de Ginástica Rítmica (GR). O estudo foi desenvolvido com 10 atletas (14 a 19 anos) de GR, realizados em três dias consecutivos (1° dia: controle G1; 2° dia: Suplemento 1 G2; 3° dia: Suplemento 2 G3), com ingestão da bebida em três momentos distintos: no início do treino, 1 hora e 2 horas após. Os resultados permitem concluir que os suplementos foram eficientes para manter os níveis glicêmicos, além disso, as bebidas artesanais a base de carboidratos proporcionaram maior sensação de prazer diante do esforço realizado, principalmente o G3.

Abstract This study aimed to verify the influence of the consumption of different handmade drinks containing carbohydrates during training on lactate and glucose concentration and affective feeling of Rhythmic Gymnastics (RG) athletes. The study was conducted with 10 athletes (14-19 years) of RG, performed during three consecutive days (1st day: control G1, 2nd day: Supplement 1 G2, 3rd day: Supplement 2 G3), with intake at three different times: at the beginning of training, 1 hour and 2 hours after. The results showed that the supplements were effective in maintaining glucose; moreover, the handmade drinks containing carbohydrates provided greater sense of pleasure at the efforts, especially in G3.

Resumen Este estudio tuvo como objetivo verificar la influencia del consumo de diferentes bebidas preparadas artesanalmente que contienen hidratos de carbono durante el entrenamiento en la concentración plasmática de lactato y glucosa, y el sentimiento afectivo de atletas de gimnasia rítmica (GR). El estudio se llevó a cabo con 10 atletas (14-19 años) de GR, realizado durante 3 días consecutivos (primer día: control G1; segundo día: suplemento 1 G2, y tercer día: suplemento 2 G3), con la ingesta de la bebida en tres momentos diferentes: al comienzo del entreno, 1 hora y 2 horas después. Los resultados mostraron que los suplementos fueron efectivos en el mantenimiento de los niveles de glucosa; además, las bebidas preparadas artesanalmente que contienen hidratos de carbono proporcionan mayor sensación de placer por los esfuerzos realizados, especialmente en G3.

Resumo O objetivo do presente estudo foi verificar a influência de um programa de treinamento na relação entre indicadores de desempenho de diferentes capacidades físicas intra e inter sistema funcional e neuromuscular em diferentes momentos da temporada. Participaram do estudo 16 jovens futebolistas com idade média de 16,5 ± 0,4 anos. O estudo decorreu por 17 semanas, incluindo três momentos de avaliação (T1:1ª; T2:10ª e T3:17ª semana). Foram encontradas alta correlação entre indicadores de predominância neuromuscular (Sprints em 30m (30m) e Sprint Máximo (MaxSprint) (RAST) em T1) (r = 0,93; P ≤ 0,001), funcional (Média de Sprints (MidSprint) e Sprint Mínimo (MinSprint) (RAST) em T1, T2 e T3; MinSprint e Índice de Fadiga (FI) (RAST) em T3) (r = 0,95; 0,85; 0,91; -0,86; P ≤ 0,001, respectivamente) e entre funcional e neuromuscular (30 m e MidSprint em T1; 30 m e MinSprint em T1; MaxSprint e MidSprint em T1 e T2 e MaxSprint e MinSprint em T1) (r = 0,95; 0,93; 0,96; 0,84; 0,87; P ≤ 0,001, respectivamente). Os conteúdos de treinamento exerceram influência na correlação dos indicadores de rendimento nos diferentes momentos da temporada.

Abstract The aim of this study was to investigate the influence of a training program on the relation between performance indicators of different physical capacities intra and inter functional and neuromuscular systems at different times of the season. Subjects were 16 young soccer players with an average age of 16.5 ± 0.4 years. The study was carried out for 17 weeks, including three assessment moments (T1: 1st, T2: 10th and T3: 17th week). High correlation was found between indicators of neuromuscular predominance (30 meters sprint test (30 m) and Maximum Sprint (MaxSprint) (RAST) in T1) (r = 0.93, p ≤ 0.001), functional (Sprints Average (MidSprint) and Minimal Sprint (MinSprint) (RAST) in T1, T2 and T3; MinSprint and Fatigue Index (FI) (RAST) in T3) (r = 0.95, 0.85, 0.91; -0.86, p ≤ 0.001, respectively) and between functional and neuromuscular indicators (30 m and MidSprint in T1; 30 m and MinSprint in T1; MaxSprint and MidSprint in T1 and T2 and MaxSprint and MinSprint in T1) (r = 0.95, 0.93, 0.96, 0.84, 0.87, p ≤ 0.001, respectively). The training contents had influence on the correlation of performance indicators at different times of the season.

Resumen El objetivo de este estudio fue investigar la influencia de un programa de formación en la relación entre los indicadores de desempeño de las diferentes capacidades físicas intra y intersistemas funcionales y neuromusculares, y en diferentes momentos de la temporada. En el estudio participaron 16 jugadores de fútbol jóvenes con una media de edad de 16,5 ± 0,4 años. El estudio duró 17 semanas, incluyendo tres momentos de evaluación (T1: 1.a; T2: 10.a y T3: 17.a semana). Se encontró una alta correlación entre los indicadores de prevalencia neuromuscular [sprints en 30 m (30 m) y sprint máximo (MaxSprint; RAST) en T1 (r = 0,93; P ≤ 0,001)], funcional [sprint medio (MidSprint) y sprint mínimo (MinSprint; RAST) en T1, T2 e T3; MinSprint e índice de fatiga (FI; RAST) en T3 (r = 0,95; 0,85; 0,91; -0,86; P ≤ 0,001, respectivamente)] y entre funcional y neuromuscular [30 m y MidSprint en T1; 30 m y MinSprint en T1; MaxSprint y MidSprint en T1 y T2, y MaxSprint y MinSprint en T1 (r = 0,95; 0,93; 0,96; 0,84; 0,87; P ≤ 0,001, respectivamente)]. Los contenidos de la formación han influido en la correlación de los indicadores de rendimiento en diferentes momentos de la temporada.

BACKGROUND: Fractional non-ablative lasers keep the epidermis intact, while fractional ablative lasers remove it, making them theoretically more effective. OBJECTIVES: To evaluate the clinical and histological alterations induced by fractional photothermolysis for treating photoaging, comparing the possible equivalence of multiple sessions of 1540nm Erbium, to one session of 2940nm Erbium. METHODS: Eighteen patients (mean age 55.9) completed the treatment with three sessions of 1540nm fractional Erbium laser on one side of the face (50 mJ/mB, 15ms, 2 passes), and one session of 2940nm on the other side (5mJ/mB, 0.25ms, 2 passes). Biopsies were performed before and 3 months after treatment. Clinical, histological and morphometric evaluations were carried out. RESULTS: All patients presented clinical improvement with no statistically significant difference (p> 0.05) between the treated sides. Histopathology revealed a new organization of collagen and elastic fibers, accompanied by edema, which was more evident with the 2940nm laser. This finding was confirmed by morphometry, which showed a decrease in collagen density for both treatments, with a statistical significance for the 2940nm laser (p > 0.001). CONCLUSIONS: Three 1540nm sessions were clinically equivalent to one 2940nm session. The edema probably contributed to the positive results after three months, togheter with the new collagen and elastic fibers organization. The greater edema after the 2940nm session indicates that dermal remodeling takes longer than with 1540nm. It is possible that this histological superiority relates to a more prolonged effect, but a cohort longer than three months is needed to confirm that supposition.