Alvero-Cruz, José RamónParent Mathias, VerónicaGarcía Romero, Jerónimo C.Rosety, IgnacioRosety, Miguel A.Diaz, Antonio JesusOrdoñez, Francisco J.Rosety-Rodriguez, Manuel2022-12-292022-12-292020-11-02Alvero-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):3374http://hdl.handle.net/10668/4546The 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.enAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/Fat massFat-free massSkeletal muscle massPhase angleReactanceDisordered eating attitudesDance studentsROC curvesAnthropometryBody compositionFeeding and eating disordersCurva ROCAntropometríaComposición corporalTrastornos de alimentación y de la ingestión de alimentosAndalucíaMedical Subject Headings::Persons::Persons::Age Groups::AdolescentMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::AnthropometryMedical Subject Headings::Phenomena and Processes::Chemical Phenomena::Biochemical Phenomena::Body CompositionMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Anthropometry::Body Weights and Measures::Body Mass IndexMedical Subject Headings::Anthropology, Education, Sociology and Social Phenomena::Human Activities::Leisure Activities::Recreation::DancingMedical Subject Headings::Psychiatry and Psychology::Behavior and Behavior Mechanisms::Behavior::Behavior, Animal::Feeding BehaviorMedical Subject Headings::Psychiatry and Psychology::Mental Disorders::Eating DisordersMedical Subject Headings::Check Tags::FemaleMedical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::HumansMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Research Design::Sensitivity and Specificity::Predictive Value of TestsMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Sensitivity and Specificity::ROC CurveMedical Subject Headings::Anthropology, Education, Sociology and Social Phenomena::Education::StudentsMedical Subject Headings::Psychiatry and Psychology::Behavior and Behavior Mechanisms::AttitudeMedical Subject Headings::Phenomena and Processes::Physical Phenomena::Magnetic Phenomena::Electromagnetic Phenomena::Electricity::Electric Conductivity::Electric ImpedanceMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Analysis of VarianceMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Confidence IntervalsMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Area Under CurveMedical Subject Headings::Geographical Locations::Geographic Locations::Europe::Spainresearch article33147764Acceso abierto10.3390/nu121133742072-6643PMC7693491