ResumenIntroducción: en los últimos años se ha valorado la evaluación de la gravedad y del pronóstico nutricional en pacientes críticos, por ser pará-metros relacionados a la morbimortalidad y porteadores de conductas terapéuticas. Objetivo: verifi car el pronóstico nutricional mediante el Ángulo de Fase (AF) y el Índice de Pronóstico Nutricional de Onodera (OPNI) y su relación con la gravedad, con el tiempo de internación y con la mortalidad de pacientes críticos. Métodos: estudio transversal descriptivo, incluyendo pacientes adultos, internados en Unidad de Terapia Intensiva (UTI). Fueron recabados datos en la historia clínica de los pacientes para cálculo de los indicadores de gravedad (APACHE II, SOFA y SAPS 3), y verifi cación del tiempo de internación y desenlace. Fue realizada la bioimpedancia para cálculo del AF, mediante datos de resistencia y reactancia. Resultados: se incluyeron 35 pacientes, con edad promedio de 55,5 ± 16,7 años, siendo 26% del sexo masculino y 74% del femenino. La tasa de mortalidad encontrada en el estudio (17%) fue semejante a aquella esperada por los indicadores de gravedad APACHE II y SOFA, pero superior a aquella esperada por el SAPS 3. Los valores promedios encontrados para el AF (4,2 ± 1,0) y el OPNI (38,7 ± 8,3) fueron inferiores a los valores de referencia adoptados. Aquellos con AF < 5,1 presentaron signifi cativamente menores valores de reactancia y albumina, mayores valores del APACHE II y del SOFA, y tuvieron mayor tiempo de internación y mortalidad. El AF se correlacionó inversamente con todos los indicadores de gravedad, pero lo contrario fue observado con el OPNI, no habiendo correlación entre estos dos indicadores de pronóstico nutricional. Conclusión: el AF es una herramienta confi able para evaluación del pronóstico nutricional en pacientes críticos. Por el contrario, se necesitan más estudios utilizando el OPNI con este tipo de pacientes. AbstractIntroduction: Assessing severity and nutritional prognosis in critical patients has become increasingly important in recent years, since these parameters are related to morbidity/mortality and used to guide therapeutic options. Objective: Determine nutritional prognosis through the Phase Angle (PA) and Onodera's Prognostic Nutritional Index (OPNI) and its relationship with severity, hospitalization time and mortality of critically ill patients. Methods: Descriptive cross-sectional study, involving adult patients hospitalized in an Intensive Care Unit (ICU). Data were collected from the patients' medical records to calculate severity indicators (APACHE II, SOFA and SAPS 3) and determine the length of hospitalization and outcome. Bioimpedance was conducted to calculate the PA, using resistance and reactance data. Results: A total of 35 patients (26% men and 74% women), with mean age of 55.5 ± 16.7 years, were included. The mortality rate (17%) was similar to that expected by APACHE II and SOFA, but higher than that predicted by SAPS 3. The mean values for the PA (4.2 ± 1.0) and OPNI (38.7 ± 8.3) were lower than the referen...

Background Ballet dancers are a risk group for body image (BI) distortion, dissatisfaction and eating disorders (ED), but few studies have investigated these aspects in amateur adult practitioners. This study aimed to evaluate if amateur female adult classical ballet dancers presented different BI and behaviors for ED than gym users and sedentary women. Methods This is a cross-sectional study where classical ballet dancers (n = 19) were compared to gym users (n = 19) and sedentary women (n = 19). Body mass index (BMI) was assessed, and a figure rating scale was applied to assess BI distortion/dissatisfaction. The body shape questionnaire (BSQ) was used to measure BI concern. The eating attitudes test (EAT-26) and the bulimic investigatory test, Edinburgh (BITE) were used for behaviors toward anorexia and bulimia. Results BMI was significantly lower in ballet dancers than gym users and sedentary women (F, p = .04). BI distortion did not differ among the studied groups. BI dissatisfaction was lower (X2, p = .041) in ballet dancers (75.0%) and gym users (70.6%) compared to sedentary women (100%). Correspondence analysis showed ballet dancers were mostly not concerned with BI, which was not observed among the other groups. The EAT-26 did not differ between the studied groups. The BITE score was lower (Tukey’s post hoc test, p = .005) in the ballet dancers [mean 5.3 (5.6)] compared to the sedentary women [mean 10.9 (4.8)]. Conclusions Data suggest that amateur classical ballet practicing is associated to better BI and fewer behaviors for ED in the studied population. The lower BMI in ballet dancers might explain these findings, and further studies should explore these associations.

Introduction In sports related to low body weight, such as classical ballet, the assessment of body composition is important for monitoring performance and health status. This study aimed to cross-validate anthropometry and bioelectrical impedance (BIA) predictive equations for estimating body composition of non-professional classical ballet dancers, using dual-energy-X-ray absorptiometry (DXA) as a reference method. Materials and methods Thirty-seven female non-professional classical dancers (median age of 19 years), at intermediate/advanced level, were evaluated in a cross-sectional study. Body composition was evaluated by DXA, anthropometry and tetrapolar BIA. Twenty different predictive equations of anthropometry (n = 8) and BIA (n = 12) were used to estimate Body Fat (BF) and Fat-Free Mass (FFM), testing their validity against DXA using the Bland-Altman statistics. Results For BF estimated by anthropometry equations, just one equation showed agreement with DXA (r = 0.852, p < 0.0005; p = 0.600 for one sample T-test). According to the Bland-Altman analysis, this equation also showed validity, with the absence of proportional bias. Regarding the predictive BIA equations tested, none were valid for our study group. Conclusion Only one of the anthropometric equations, the one proposed by Durnin and Womerley (1974), but none of the BIA equations analyzed, was valid for the evaluation of body composition of the studied classical dancers. Our results emphasize the importance of previous cross-validation of existing equations or the development of specific equations for body composition assessment in specific populations.

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Objectives This study aimed to identify and compare fat mass of classical ballet practitioners using 8 different anthropometric predictive equations. Methods A cross-sectional study was conducted from 2016 to 2018, in which 37 classical intermediate/advanced female dancers were evaluated. The anthropometric equations were selected from the literature using the following key words: “predictive equations”, “anthropometry”, “body composition”, and “ballet dancers”. Equations developed for men, for populations with specific diseases, and those that did not include the age range of the study participants were excluded. Thus, the studied equations were: Sloan (1962), Jackson and Pollock (1980), Jackson and Pollock (1975), Guedes (1985), Slaughter (1988), Hergenroeder (1995), Durnin and Womersley (1997). From the equations selected, the Fat Mass (FM) was evaluated. To test if the equations used generated different FM results, ANOVA followed by Tukey's post-test was used. Results From the anthropometric equations evaluated, a mean FM of 27.11 (0.32)% was observed. The equations of Guedes (1985), Jackson and Pollock (1975) showed similar FM results, of 28.05 (0.8)% and 28.02 (1.22)%, respectively. The equations of Petroski (1995), Sloan (1962) and Slaugther (1988) also presented similar FM results of 26.23 (0.73)%, 26.09 (1.05)% and 26.44 (0.73)%, respectively. The other studied equations presented different FM results when compared. Conclusions Study results showed that using different equations give different FM results, reinforcing that the validation and cross validation of population specific equations are needed. Funding Sources Conselho Nacional de desenvolvimento científico e tecnológico (CNPq). Supporting Tables, Images and/or Graphs

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