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Bioelectrical impedance phase angle in constitutionally lean females, ballet dancers and patients with anorexia nervosa.
Eur J Clin Nutr. 2009 Jul; 63(7):905-8.EJ

Abstract

BACKGROUND/OBJECTIVE

Several articles have described body composition in anorexia nervosa, whereas little is known about this issue in underweight ballet dancers and constitutionally lean females. The main aim of this study was to assess whether phase angle (a bioimpedance variable related to body cell mass) differs according to the type of underweight in female adolescents and young women.

SUBJECTS/METHODS

Skinfold thicknesses and bioimpedance analysis (whole body and limbs) were evaluated in three groups of underweight patients (30 patients with anorexia nervosa, 10 constitutionally lean individuals and 15 classical dancers) and 30 normal weight controls.

RESULTS

There were no differences between the three groups of underweight patients with respect to anthropometric and bioelectrical impedance analysis (BIA) variables with the exception of phase angle. The latter was significantly higher in dancers, lower in anorectic patients and not different in constitutionally lean patients, as compared with controls.

CONCLUSIONS

Phase angle (assessed by single-frequency BIA) appears to discriminate between different forms of underweight, being an effective marker of qualitative changes in body composition.

Authors+Show Affiliations

Department of Clinical and Experimental Medicine, Interuniversity Center for Obesity and Eating Disorders, Federico II University, Via S Pansini 5, Naples 80131, Italy. marra@unina.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19002201

Citation

Marra, M, et al. "Bioelectrical Impedance Phase Angle in Constitutionally Lean Females, Ballet Dancers and Patients With Anorexia Nervosa." European Journal of Clinical Nutrition, vol. 63, no. 7, 2009, pp. 905-8.
Marra M, Caldara A, Montagnese C, et al. Bioelectrical impedance phase angle in constitutionally lean females, ballet dancers and patients with anorexia nervosa. Eur J Clin Nutr. 2009;63(7):905-8.
Marra, M., Caldara, A., Montagnese, C., De Filippo, E., Pasanisi, F., Contaldo, F., & Scalfi, L. (2009). Bioelectrical impedance phase angle in constitutionally lean females, ballet dancers and patients with anorexia nervosa. European Journal of Clinical Nutrition, 63(7), 905-8. https://doi.org/10.1038/ejcn.2008.54
Marra M, et al. Bioelectrical Impedance Phase Angle in Constitutionally Lean Females, Ballet Dancers and Patients With Anorexia Nervosa. Eur J Clin Nutr. 2009;63(7):905-8. PubMed PMID: 19002201.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bioelectrical impedance phase angle in constitutionally lean females, ballet dancers and patients with anorexia nervosa. AU - Marra,M, AU - Caldara,A, AU - Montagnese,C, AU - De Filippo,E, AU - Pasanisi,F, AU - Contaldo,F, AU - Scalfi,L, Y1 - 2008/11/12/ PY - 2008/11/13/pubmed PY - 2009/8/7/medline PY - 2008/11/13/entrez SP - 905 EP - 8 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 63 IS - 7 N2 - BACKGROUND/OBJECTIVE: Several articles have described body composition in anorexia nervosa, whereas little is known about this issue in underweight ballet dancers and constitutionally lean females. The main aim of this study was to assess whether phase angle (a bioimpedance variable related to body cell mass) differs according to the type of underweight in female adolescents and young women. SUBJECTS/METHODS: Skinfold thicknesses and bioimpedance analysis (whole body and limbs) were evaluated in three groups of underweight patients (30 patients with anorexia nervosa, 10 constitutionally lean individuals and 15 classical dancers) and 30 normal weight controls. RESULTS: There were no differences between the three groups of underweight patients with respect to anthropometric and bioelectrical impedance analysis (BIA) variables with the exception of phase angle. The latter was significantly higher in dancers, lower in anorectic patients and not different in constitutionally lean patients, as compared with controls. CONCLUSIONS: Phase angle (assessed by single-frequency BIA) appears to discriminate between different forms of underweight, being an effective marker of qualitative changes in body composition. SN - 1476-5640 UR - https://www.unboundmedicine.com/medline/citation/19002201/Bioelectrical_impedance_phase_angle_in_constitutionally_lean_females_ballet_dancers_and_patients_with_anorexia_nervosa_ L2 - https://doi.org/10.1038/ejcn.2008.54 DB - PRIME DP - Unbound Medicine ER -