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Titolo:
DISCRIMINATING BETWEEN BODY-FAT AND FLUID CHANGES IN THE OBESE ADULT USING BIOIMPEDANCE VECTOR ANALYSIS
Autore:
PICCOLI A; BRUNANI A; SAVIA G; PILLON L; FAVARO E; BERSELLI ME; CAVAGNINI F;
Indirizzi:
UNIV PADUA,IST MED INTERNA,DIV NEPHROL,VIA GIUSTINIANI 2 I-35128 PADUA ITALY UNIV MILAN,CHAIR ENDOCRINOL 2 I-20122 MILAN ITALY SAN GIUSEPPE HOSP,IRCCS,ENDOCRINE UNIT VERBANIA PIANCAVALLO ITALY
Titolo Testata:
International journal of obesity
fascicolo: 2, volume: 22, anno: 1998,
pagine: 97 - 104
SICI:
0307-0565(1998)22:2<97:DBBAFC>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIOELECTRICAL-IMPEDANCE ANALYSIS; X-RAY ABSORPTIOMETRY; VALIDATION; WATER; PREDICTION; MASS;
Keywords:
BIOELECTRICAL IMPEDANCE; WEIGHT LOSS; ENERGY RESTRICTION; HEMODIALYSIS; OBESITY; EDEMA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
A. Piccoli et al., "DISCRIMINATING BETWEEN BODY-FAT AND FLUID CHANGES IN THE OBESE ADULT USING BIOIMPEDANCE VECTOR ANALYSIS", International journal of obesity, 22(2), 1998, pp. 97-104

Abstract

OBJECTIVE: Conventional body composition methods may produce biased quantification of fat and fat-free mass in obese subjects, due to possible violation of the assumption of constant (73%) tissue hydration. Weused an assumption-free, graphical method for interpreting body weight variation in obesity using bioelectrical measurements. DESIGN: 540 obese subjects with body mass index (BMI) > 31 kg/m(2) without apparentedema were compared to 726 healthy subjects with BMI < 31 kg/m(2) andto 50 renal patients with apparent edema. A subgroup of 48 obese subjects were evaluated again after weight loss (8.6 kg, 3 BMI units) following one-month energy restriction (5 MJ/d, 1200 kcal/d). 32 obese uremic patients were evaluated before and after a dialysis session (3.2 kg fluid removed). Direct measurements obtained from standard 50 kHz frequency bioelectrical impedance analyzer were used as impedance vectors in the Resistance-Reactance Graph. RESULTS: 1) Impedance vectors of obese subjects could be discriminated from those of edematous patientswith 91% correct allocation; 2) A significant lengthening of vectors was observed after fluid loss of 3 kg in obese subjects; but 3) A bodyweight loss of about 9 kg after energy restriction was associated with no vector displacement. CONCLUSION: A different impedance vector pattern was associated with body weight loss in obesity due to fluid removal (vector lengthening) versus an energy-restricted diet (no vector displacement).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/07/20 alle ore 18:01:04