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Assessment of nutritional status in free-living elderly individuals by bioelectrical impedance vector analysis.

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 reac...

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Publicado en:Nutrition Vol. 25; no. 1; pp. 3 - 6
Autores principales: Buffa R, Floris G, Marini E
Formato: research tables/charts Journal Article
Publicado: Elsevier B.V. Jan2009
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Jan2009
      vid: 25
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      pub: Elsevier B.V.
      place: Philadelphia, Pennsylvania
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        10.1016/j.nut.2008.07.014
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        105592177
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        atl: Assessment of nutritional status in free-living elderly individuals by bioelectrical impedance vector analysis.
      aug:
        au:
          Buffa R
          Floris G
          Marini E
        affil: Department of Experimental Biology, Anthropological Science Section, University of Cagliari, Cagliari, Italy.
      sug:
        subj:
          Community Living
          Electric Impedance
          Nutritional Status In Old Age
          Aged
          Aged, 80 and Over
          Body Weights and Measures
          Clinical Assessment Tools
          Confidence Intervals
          Convenience Sample
          Descriptive Statistics
          Female
          Funding Source
          Italy
          Male
          Surveys
          Human
          Aged: 65+ years
          Aged, 80 & over
          Female
          Male
      ab: 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.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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