Documentos de soporte para una práctica interuniversitaria de bases de datos

Este informe recoge la documentación generada para llevar a cabo una práctica interuniversitaria en el área de base de datos durante los cursos 09/10 y 10/11. Se ha desarrollado una experiencia entre la UPV/EHU y la Universidad de la Rioja incorporando de forma sistemática la telecolaboración, formando equipos de trabajo con estudiantes de las dos universidades que no se conocen entre sí y han trabajado a distancia. El proyecto se ha realizado en el ámbito de dos asignaturas de bases de datos concretas, una de cada universidad, donde las similitudes y diferencias entre ambas producen equipos heterogéneos. Los alumnos han colaborado en las diferentes fases de la creación de una base de datos, desde la invención de unos requisitos hasta la realización de consultas. Para el desarrollo de esta práctica se han elaborado enunciados detallados para cada fase con ejemplos del trabajo a realizar. Además se ha acordado una rúbrica de evaluación y una encuesta para valorar la experiencia. En el presente documento se recopila dicho material de soporte.

Dietary animal and plant protein intakes and their associations with obesity and cardio-metabolic indicators in European adolescents: the HELENA cross-sectional study

Background: Previous studies suggest that dietary protein might play a beneficial role in combating obesity and its related chronic diseases. Total, animal and plant protein intakes and their associations with anthropometry and serum biomarkers in European adolescents using one standardised methodology across European countries are not well documented. Objectives: To evaluate total, animal and plant protein intakes in European adolescents stratified by gender and age, and to investigate their associations with cardio-metabolic indicators (anthropometry and biomarkers). Methods: The current analysis included 1804 randomly selected adolescents participating in the HELENA study (conducted in 2006-2007) aged 12.5-17.5 y (47% males) who completed two non-consecutive computerised 24-h dietary recalls. Associations between animal and plant protein intakes, and anthropometry and serum biomarkers were examined with General linear Model multivariate analysis. Results: Average total protein intake exceeded the recommendations of World Health Organization and European Food Safety Authority. Mean total protein intake was 96 g/d (59% derived from animal protein). Total, animal and plant protein intakes (g/d) were significantly lower in females than in males and total and plant protein intakes were lower in younger participants (12.5-14.9 y). Protein intake was significantly lower in underweight subjects and higher in obese ones; the direction of the relationship was reversed after adjustments for body weight (g/(kg.d)). The inverse association of plant protein intakes was stronger with BMI z-score and body fat percentage (BF%) compared to animal protein intakes. Additionally, BMI and BF% were positively associated with energy percentage of animal protein. Conclusions: This sample of European adolescents appeared to have adequate total protein intake. Our findings suggest that plant protein intakes may play a role in preventing obesity among European adolescents. Further longitudinal studies are needed to investigate the potential beneficial effects observed in this study in the prevention of obesity and related chronic diseases.