Abstract
15 young healthy volunteers were studied to assess the reliability of bioelectrical impedance analysis (BIA) to determine body composition during acute dehydration. Body weight (BW), resistance and reactance measurements were performed before and 4h after a 40 mg intravenous administration of furosemide. BW decreased on average from 69.09 ± 9.83 kg to 67.43 ± 9.72 kg (p <0·001), while resistance, reactance, and phase angle showed significant increases. The individual variations in bioelectrical parameters were not related to the BW loss. Formulae to derive body composition predicted poorly the true water loss (mean individual error: 40% of real loss). The errors in body composition prediction were unrelated to basal percentage of fat free mass, to body mass index, or to BW loss after furosemide administration. In conclusion, BIA proved unreliable in calculating the body composition of acutely dehydrated subjects.
| Original language | English |
|---|---|
| Pages (from-to) | 128-133 |
| Number of pages | 6 |
| Journal | Clinical Nutrition |
| Volume | 11 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1992 |
Fingerprint
ASJC Scopus subject areas
- Medicine (miscellaneous)
- Critical Care and Intensive Care Medicine
- Endocrinology, Diabetes and Metabolism
- Gastroenterology
- Health Professions(all)
Cite this
Role of bioelectrical impedance analysis in acutely dehydrated subjects. / Dal Cin, S.; Braga, M.; Molinari, M.; Cristallo, M.; Di Carlo, V.
In: Clinical Nutrition, Vol. 11, No. 3, 1992, p. 128-133.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Role of bioelectrical impedance analysis in acutely dehydrated subjects
AU - Dal Cin, S.
AU - Braga, M.
AU - Molinari, M.
AU - Cristallo, M.
AU - Di Carlo, V.
PY - 1992
Y1 - 1992
N2 - 15 young healthy volunteers were studied to assess the reliability of bioelectrical impedance analysis (BIA) to determine body composition during acute dehydration. Body weight (BW), resistance and reactance measurements were performed before and 4h after a 40 mg intravenous administration of furosemide. BW decreased on average from 69.09 ± 9.83 kg to 67.43 ± 9.72 kg (p <0·001), while resistance, reactance, and phase angle showed significant increases. The individual variations in bioelectrical parameters were not related to the BW loss. Formulae to derive body composition predicted poorly the true water loss (mean individual error: 40% of real loss). The errors in body composition prediction were unrelated to basal percentage of fat free mass, to body mass index, or to BW loss after furosemide administration. In conclusion, BIA proved unreliable in calculating the body composition of acutely dehydrated subjects.
AB - 15 young healthy volunteers were studied to assess the reliability of bioelectrical impedance analysis (BIA) to determine body composition during acute dehydration. Body weight (BW), resistance and reactance measurements were performed before and 4h after a 40 mg intravenous administration of furosemide. BW decreased on average from 69.09 ± 9.83 kg to 67.43 ± 9.72 kg (p <0·001), while resistance, reactance, and phase angle showed significant increases. The individual variations in bioelectrical parameters were not related to the BW loss. Formulae to derive body composition predicted poorly the true water loss (mean individual error: 40% of real loss). The errors in body composition prediction were unrelated to basal percentage of fat free mass, to body mass index, or to BW loss after furosemide administration. In conclusion, BIA proved unreliable in calculating the body composition of acutely dehydrated subjects.
UR - http://www.scopus.com/inward/record.url?scp=0026720797&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026720797&partnerID=8YFLogxK
U2 - 10.1016/0261-5614(92)90072-X
DO - 10.1016/0261-5614(92)90072-X
M3 - Article
AN - SCOPUS:0026720797
VL - 11
SP - 128
EP - 133
JO - Clinical Nutrition
JF - Clinical Nutrition
SN - 0261-5614
IS - 3
ER -