Vector bioimpedance detects situations of malnutrition not identified by the indicators commonly used in geriatric nutritional assessment: A pilot study.

Objective: To compare body composition as assessed by conventional and vector bioelectrical impedance analysis according to the nutritional cataloging using body mass index (BMI) in a group of institutionalized elderly.

Methods: Cross-sectional study in 38 institutionalized elderly. Body composition was estimated by bioimpedance analysis.

[PROPOSAL FOR A NEW FORMULA FOR ESTIMATING RESTING ENERGY EXPENDITURE FOR HEALTHY SPANISH POPULATION].

Introduction: although there are precise and accurate techniques for estimating resting energy expenditure, like the indirect calorimetry (IC), daily practice needs faster, easier and cheaper methods as the predictive equations.

Objective: the aim of the study was to develop a new predictive equation for estimating resting energy expenditure (REE) for healthy Spanish population. Méthods: the REE of 95 healthy normal weighted volunteers was determined by indirect calorimetry (IC).

[AGREEMENT BETWEEN INDIRECT CALORIMETRY AND PREDICTIVE EQUATIONS IN A SAMPLE OF SPANISH HEALTHY ADULTS].

Objective: the aim of this study was to analyze the agreement between the resting energy expenditure (REE) obtained by indirect calorimetry (IC) and that obtained by prediction equations in a sample of healthy adults from Spain. Méthods: a descriptive cross-sectional study was conducted in 95 healthy, normal-weight adults. REE was determined by IC and 45 population-specific prediction equations which were based on weight, height, sex and/or body composition (BC).

[Changes in body composition in relation to the stage of dementia in a group of institutionalized elderly].

Objective: To assess the nutritional status of a group of institutionalized elderly with dementia by analysing the changes in the body composition according to their evolutionary state.

Method: A cross-sectional study was carried out assessing the nutritional status and the body composition (anthropometry, MNA and bioimpedance) in 63 institutionalized elderly with a diagnosis of dementia in evolutionary stages 5, 6 and 7 of the GDS (Global Deterioration Scale) scales and the FAST (Functional Assessment Stating) scale. The fat mass index (FMI) and the fat-free mass index (FFMI) were calculated.