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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

FERNANDEZ VAZQUEZ, Rosalía et al. Effects of food and drink ingestion on body composition variables of abdominal bioelectrical impedance. Nutr. Hosp. [online]. 2015, vol.32, n.5, pp.2269-2273. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.32.5.9618.

Objective: to know the changes in trunk fat and visceral fat level determined by abdominal bioelectrical impedance (BIA) as well as other anthropometric measures related to the central or abdominal fat after the ingestion of a lunch. Methods: the experimental study was conducted to assess a longitudinal intervention descriptive study. Participants: 21 subjects (10 male and 11 female), volunteers who have access to a medical assessment, with an age of 74 ± 13.43 years. Measurements: Maximal waist circumference in standing position, waist circumference at navel level in supine position and sagittal abdominal diameter (SAD). In the same position trunk fat and visceral fat level by abdominal bioelectrical impedance analysis with Tanita AB-140 (ViScan) were obtained before and after meal. Results: anthropometric measures as waist circumference in supine position and SAD did not show significant differences (P> 0.05), after food ingestion, except for a significant increase of the maximal waist circumference in standing position (P< 0.05). In addition trunk fat and visceral fat ratio did not change (P> 0.05). The percentage changes of the measures were less than 2% for waist circumference in standing position, waist circumference by Viscan, sagittal abdominal diameter and trunk fat and 5.9% for visceral fat ratio. Conclusions: the effects on trunk fat and visceral fat ratio by abdominal bioelectrical impedance are minimal after the ingestion of a portion of food and drink, although it is always recommended to do it in fasting conditions.

Palabras clave : Abdominal bioelectrical impedance; Trunk fat; Visceral fat; Waist circumference; Sagittal abdominal diameter; Food effects.

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