Interventions. An initial intensive treatment period (3-6 months) was followed by a less intensive continuous care (a follow-up control every 2-4 months).Main outcome measures. Attrition, reasons for treatment interruption and BMI change. Data were recorded by telephone interview in dropouts. Results. Only 157 patients (15.7%) were in continuous treatment at 36 months. The main reasons of attrition were logistics, unsatisfactory results and lack of motivation. The only basal predictor for continuous care was lower Expected One-Year BMI Loss (P ¼ 0.016). The probability of dropout increased systematically for any 5% expected BMI loss (Hazard ratio, 1.05; 96% confidence interval, 1.01-1.09). The mean percentage weight loss was greater in continuers (5.2% vs. 3.0% in dropouts; P ¼ 0.016). However, the dropouts satisfied with the results or confident to lose additional weight without professional help reported a mean weight loss of 9.6% and 6.5% respectively. Discussion. Continuous care produces long-term weight loss only in a subgroup of obese patients seeking treatment in medical centres. The finding that subgroups of dropouts report long-term weight loss has implication for the treatment of obesity.
Physical activity plays a major role in the development and management of obesity. High levels of physical activity provide an advantage in maintaining energy balance at a healthy weight, but the amount of exercise needed to produce weight loss and weight loss maintenance may be difficult to achieve in obese subjects. Barriers to physical activity may hardly be overcome in individual cases, and group support may make the difference. The key role of cognitive processes in the failure/success of weight management suggests that new cognitive procedures and strategies should be included in the traditional behavioral treatment of obesity, in order to help patients build a mindset of long-term weight control. We reviewed the role of physical activity in the management of obesity, and the principal cognitive-behavioral strategies to increase adherence to exercise. Also in this area, we need to move from the traditional prescriptive approach towards a multidisciplinary intervention.
A multicomponent school-based intervention addressing the needs of children, teachers and families produced a significant and favourable short-term effect on overweight/obese schoolchildren.
It is very unlikely that our obesity-promoting environment will change in the near future. It is therefore mandatory to improve our knowledge of the main factors associated with successful adoption of obesity-reducing behaviors. This may help design more powerful procedures and strategies to facilitate the adoption of healthy lifestyles in a “toxic” environment favoring the development of a positive energy balance. The aim of this review is to describe the main factors associated with successful adoption of obesity-reducing behaviors and to describe the most recent development, limits, and outcomes of lifestyle modification programs. The evidence regarding predictors of weight loss and weight loss maintenance remains largely incomplete. It is necessary to develop strategies matching treatments to patients’ needs to improve successful weight loss and its maintenance. How to detect and how to address these needs is a continuous, challenging, research problem.
Non-alcoholic fatty liver disease (NAFLD) is a clinical/biochemical condition associated with the metabolic syndrome. As the disease stems from excess calorie intake and lack of physical activity, the correction of unhealthy lifestyles is the background of any prevention and treatment strategy; drugs should remain a second-line treatment. Several studies have shown that weight loss and physical activity, the cornerstones of a healthy lifestyle, have a specific therapeutic role in NAFLD, preventing disease progression and reducing the burden of disease. Prescriptive diets have a limited long-term efficacy; after a short period, most patients resume their old habits and weight regain is the rule. Physical activity, usually in combination with diet, but also independent of weight loss, improves liver enzymes and reduces liver fat, with uncertain results on hepatic necroinflammation; however, making patients increase their physical activity is very difficult. Only a behavioral approach may give patients the practical instruments to achieve their eating and exercise goals, incorporate them into lifestyle, and maintain the results for a long period, thereby possibly guaranteeing long-term durability of change. Cognitive-behavior treatment should be provided to patients at risk of advanced liver disease, and this action should be coupled with prevention strategies at the population level. Only a synergistic approach and a global societal response might be effective in reducing the burden of advanced liver disease and premature death due to NAFLD/NASH (non-alcoholic steatohepatitis).
Lifestyle changes to healthy diet (HD) and habitual physical activity (HPA) are recommended in type 2 diabetes mellitus (T2DM). Yet, for most people with diabetes, it may be difficult to start changing. We investigated the stage of change toward healthier lifestyles according to Prochaska's model, and the associated psychological factors in T2DM patients, as a prerequisite to improve strategies to implement behavior changes in the population. A total of 1,353 consecutive outpatients with T2DM attending 14 tertiary centers for diabetes treatment completed the validated EMME-3 questionnaire, consisting of two parallel sets of instruments to define the stage of change for HD and HPA, respectively. Logistic regression was used to determine the factors associated with stages that may hinder behavioral changes. A stage of change favoring progress to healthier behaviors was more common in the area of HD than in HPA, with higher scores in action and maintenance. Differences were observed in relation to gender, age and duration of disease. After adjustment for confounders, resistance to change toward HD was associated with higher body mass index (BMI) (odds ratio (OR) 1.05; 95 % confidence interval (CI) 1.02-1.08). Resistance to improve HPA also increased with BMI (OR 1.06; 95 % CI 1.03-1.10) and decreased with education level (OR 0.74; 95 % CI 0.64-0.92). Changing lifestyle, particularly in the area of HPA, is not perceived as an essential part of treatment by many subjects with T2DM. This evidence must be considered when planning behavioral programs, and specific interventions are needed to promote adherence to HPA.
Lifestyle modification based on behavior therapy is the most important and effective strategy to manage the metabolic syndrome. Modern lifestyle modification therapy combines specific recommendations on diet and exercise with behavioral and cognitive strategies. The intervention may be delivered face-to-face or in groups, or in groups combined with individual sessions. The main challenge of treatment is helping patients maintain healthy behavior changes in the long term. In the last few years, several strategies have been evaluated to improve the long-term effect of lifestyle modification. Promising results have been achieved by combining lifestyle modification with pharmacotherapy, using meals replacement, setting higher physical activity goals, and long-term care. The key role of cognitive processes in the success/failure of weight loss and maintenance suggests that new cognitive procedures and strategies should be included in the traditional lifestyle modification interventions, in order to help patients build a mind-set favoring long-term lifestyle changes. These new strategies raise optimistic expectations for an effective treatment of metabolic syndrome with lifestyle modifications, provided public health programs to change the environment where patients live support them.
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