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EnglishObjective: 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 mu A) 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.
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| Titolo: | Assessment of nutritional status in free-living elderly individuals by bioelectrical impedance vector analysis | |
| Autori: | ||
| Data di pubblicazione: | 2009 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/11584/101778 | |
| Tipologia: | 1.1 Articolo in rivista |
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http://hdl.handle.net/11584/101778
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