Assessment of nutritional status in free-living elderly individuals by bioelectrical impedance vector analysis.
Nutrition
; 25(1): 3-5, 2009 Jan.
Article
en En
| MEDLINE
| ID: mdl-18849147
ABSTRACT
OBJECTIVE:
The aim of the present research was to examine bioelectrical vector changes in relation to nutritional status in a sample of healthy free-living elderly people.METHODS:
The study group consisted of 170 men and women 70 to 99 y of age. Anthropometric and bioelectrical (resistance and reactance, 50 kHz, 800 muA) measurements were taken. Bioelectrical impedance vector analysis was applied. Nutritional status was determined by the Mini-Nutritional Assessment. Bioelectrical characteristics of normal and undernourished individuals were compared statistically with Hotelling's T(2) test and graphically with 95% probability confidence ellipses.RESULTS:
The impedance and multidimensional approaches showed a clear association. Undernourished subjects had a smaller phase angle (men 5.2 +/- 1.3 versus 5.7 +/- 1.0 degrees, P = 0.027; women 5.0 +/- 1.0 versus 5.4 +/- 0.9 degrees, P = 0.065) than normally nourished subjects.CONCLUSION:
Bioelectrical impedance vector analysis represents a promising indicator of nutritional status, suitable in screening programs and clinical practice.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Composición Corporal
/
Envejecimiento
/
Evaluación Nutricional
/
Estado Nutricional
/
Impedancia Eléctrica
Tipo de estudio:
Prognostic_studies
/
Screening_studies
Idioma:
En
Revista:
Nutrition
Asunto de la revista:
CIENCIAS DA NUTRICAO
Año:
2009
Tipo del documento:
Article