Ensayo clínico aleatorizado entre consejo dietético una dieta hipocalórica comercial para la pérdida de peso de pacientes obesos con artropatía crónica

Effect of Two Meal Replacement strategies on Cardiovascular Risk Parameters in Advanced Age Patients with Obesity and Osteoarthritis

Background and aims: Meal replacement diets consist of replacing one or more meals with an artificial nutritional supplement. The objective of this study was to compare the effect of one against two meal replacement strategies on body composition and cardiovascular risk parameters in patients with obesity. Methods: A randomized clinical trial was designed with a modified hypocaloric diet with an artificial nutritional preparation replacing one or two meals for three months in patients with obesity and osteoarthritis pending orthopedic surgery. An anthropometric evaluation and a measurement of the body composition were done with bioelectrical impedance measurement at the beginning and at three months. Results: A total of 112 patients were recruited. Fifty-two patients (46.4%) were randomized to one replacement and 60 patients (53.6%) to two meal replacements. Eighty-one patients (72.3%) were women, and the average age was 61 (11.03) years. The percentage of weight loss at three months was 8.27 (4.79)% (one meal replacement: 7.98 (5.97)%; two meal replacements: 8.50 (3.48)%; p = 0.56). A decrease in fat mass measured by the fat mass index (FMI) was detected (one meal replacement: −2.15 (1.45) kg/m² vs. two meal replacements: −2.78 (2.55) kg/m²; p > 0.05), and a relative increase in fat-free mass was observed (one meal replacement: +3.57 (4.61)% vs. two meal replacements: +2.14 (4.45)%; p > 0.05). A decrease in HOMA-IR, systolic blood pressure (SBP), and total cholesterol was observed in both groups without differences between them. Conclusions: The substitution strategies of one or two meal replacements were effective in weight loss and fat mass decrease without differences between the two groups. An improvement in lipid parameters, glycemic control, and systolic blood pressure was observed without differences between strategies.

Food-related lifestyles and their association to obesity in five European countries

This paper's objective is to investigate the associations between obesity and Food-Related Lifestyles (FRL) in five European countries. A cross-sectional web-based survey was carried out in Belgium, Denmark, Germany, Greece and Poland, January 2008, with quota samples on gender (male, female), age categories (20-44 and 45-70 years), and locality of residence (urban, rural). A total of 2437 respondents (51% women, 49% men; mean age 41.4 years, SD 13.1) participated. Obtained data included socio-demographic information, measure of the food-related lifestyle scale and self-reported weights and heights. Body Mass Index (in kg/m(2)) was calculated as weight (in kg) divided by the squared height (in m(2)). Individuals were classified as obese if BMI > or = 30. Logistic regressions were fitted for the aggregated sample and then by country with obese as dependent and socio-demographics and FRL were included as independents. The prevalence of obesity in the five countries is 22%. Europeans giving more importance to 'self-fulfilment' (odds = 1.18), 'planning of meals' (odds = 1.15), and preferring 'snacks vs. meals' (odds = 1.24) are more likely to be obese. Respondents were less likely to be obese if they attached lower levels of importance to the use of 'shopping lists' (odds = 0.87). The overall picture is that a stronger interest in health, organic products and freshness, within the FLR domain of quality aspects, is associated with 'not being obese'. This study has identified specific FRL dimensions as potential predictors of obesity. The resulting consumers' profiling can be used for targeted interventions for weight management in Europe.