RT Journal Article
T1 The Predictive Role of Raw Bioelectrical Impedance Variables in Disordered Eating Attitudes in Female Ballet Dance Students
A1 Alvero-Cruz, José Ramón
A1 Parent Mathias, Verónica
A1 García Romero, Jerónimo C.
A1 Rosety, Ignacio
A1 Rosety, Miguel A.
A1 Diaz, Antonio Jesus
A1 Ordoñez, Francisco J.
A1 Rosety-Rodriguez, Manuel
K1 Fat mass
K1 Fat-free mass
K1 Skeletal muscle mass
K1 Phase angle
K1 Reactance
K1 Disordered eating attitudes
K1 Dance students
K1 ROC curves
K1 Anthropometry
K1 Body composition
K1 Feeding and eating disorders
K1 Curva ROC
K1 Antropometría
K1 Composición corporal
K1 Trastornos de alimentación y de la ingestión de alimentos
K1 Andalucía
AB The present study used receiver operating characteristic (ROC) curve analysis to investigate the accuracy of body composition and raw bioelectrical impedance analysis (BIA) in correctly classifying disordered eating attitudes (DEA) in dance students. Participants were 81 female dancers assigned in two groups: beginner training (BT; age (mean ± SD) = 10.09 ± 1.2 years, n = 32) and advanced training (AT; age = 15.37 ± 2.1 years, n = 49). Fat mass (FM) was estimated by Slaughter's equation and skeletal muscle with Poortman's equation. Impedance (Z), resistance (R), reactance (Xc) and phase angle (PhA) were obtained through multifrequency BIA at a frequency of 50 kHz. Fat-free mass (FFM) was assessed using Sun's equation. For evaluation of DEA, the Eating Attitudes Test-26 (EAT-26) questionnaire was performed. We defined an EAT-26 score ≥ 20 as positive for DEA. Comparisons between groups were performed by a one-way ANOVA test or Kruskall-Wallis test. Spearman's rank correlation coefficients were performed to assess associations between variables. ROC curve analysis was utilized to test the accuracy of body composition and BIA variables in predicting DEA. In the BT group, Xc and PhA demonstrated high accuracy in predicting DEA with an area under the curve (AUC) of 0.976 (95% confidence interval (CI): 0.85-1.00) and 0.957 (95% CI: 0.82-0.99), respectively, (both p < 0.0001). FFM Sun had an AUC of 0.836 (95% CI: 0.66-0.94) (p < 0.0001) in the BT group and FFM Slaughter was 0.797 (95% CI: 0.66-0.90) (p < 0.001) in the AT group. Reactance and Phase angle were excellent and useful predictors of DEA in the BT group.
PB MDPI
YR 2020
FD 2020-11-02
LK http://hdl.handle.net/10668/4546
UL http://hdl.handle.net/10668/4546
LA en
NO Alvero-Cruz JR, Parent Mathias V, García Romero JC, Rosety I, Rosety MA, Diaz AJ, et al. The Predictive Role of Raw Bioelectrical Impedance Variables in Disordered Eating Attitudes in Female Ballet Dance Students. Nutrients. 2020 Nov 2;12(11):3374
DS RISalud
RD Sep 25, 2025