Assessing motivation and readiness to change for weight management and control: an in-depth evaluation of three sets of instruments

A systematic review of the effectiveness of attentional bias modification to support weight management in individuals who are overweight or obese

Attentional bias modification (ABM) is a novel cognitive-based treatment that may help individuals reduce overeating by decreasing food processing bias and food cravings. However, most empirical studies have evaluated the short-term effects of ABM in populations that have body mass indexes that are within healthy ranges; therefore, the extent to which this training method can influence eating behavior in individuals who are overweight or obese remains unclear. This systematic review explored the efficacy of ABM as a tool to support weight management for individuals who are overweight or obese. Ten studies met the inclusion criteria for the review. The findings reveal that although training is effective at manipulating attentional bias to food cues, there is limited evidence that training significantly impacted appetite and eating behaviors or led to maintained weight loss.

Vida Sana y Completa: A randomized controlled trial to examine the effectiveness of diabetes prevention with and without medically supportive groceries among Latina women

Latina women have a high prevalence of obesity and obesity-related chronic diseases, such as diabetes. Approximately half of Latinas with obesity will also experience food insecurity, or a lack of access to enough food for an active and healthy life. Food insecurity is a barrier for effective prevention and management of obesity-related chronic diseases. The goal of this type 1 hybrid comparative effectiveness trial is to compare a culturally-tailored diabetes prevention intervention with and without medically supportive groceries. Adult Latina women (n = 412) with obesity (Body Mass Index (BMI) of >30 kg/m2) and food insecurity will be 1:1 randomized to the Vida Sana intervention (control), or to Vida Sana y Completa (intervention plus integrated treatment for food insecurity). Vida Sana is an evidence-based culturally tailored, 12-month diabetes prevention intervention that targets at least 5% weight loss and at least 150 min/week of moderate-to-vigorous physical activity. Participants enrolled in Vida Sana y Completa will also receive 12 weekly deliveries of medically supportive groceries. Those in Vida Sana alone will receive information on local food resources. Participants will be assessed at baseline and every 6 months for 24 months. The primary outcome is weight loss at 12 months. Secondary outcomes include weight loss maintenance, diet quality, and quality of life. Barriers and facilitators of implementation will be assessed using mixed methods according to the Consolidated Framework for Implementation Research. This study will provide critical evidence for addressing the combination of obesity and food insecurity in primary care for diabetes prevention. Trial Registration: NCT052111.

Psychometric Properties of the Weight Loss Readiness Test in Active Duty Military Personnel Enrolled in a Weight Management Trial

INTRODUCTION

The Weight Loss Readiness Test (WLRT) was developed to encourage consideration of factors influencing readiness to engage in weight loss. The WLRT is used clinically, most notably to assess motivation before initiating Navy weight management programs, yet little is known about its psychometric properties.

MATERIALS AND METHODS

This study examined the reliability, convergent and predictive validity, and factor structure of the WLRT in a sample of active duty service members enrolling in a Navy-based weight management program (N = 178, identified as female = 61%, mean age = 29.7 years, mean baseline body mass index = 33.1 kg/m2). All procedures were approved by the respective Institutional Review Boards and research committees.

RESULTS

Exploratory factor analysis revealed a 5-factor structure explaining 52% of the variance that best fit the data with low to moderate correlations between factors: (1) Motivation, (2) Exercise-Related Confidence, (3) Non-Exercise Confidence, (4) Cues, and (5) Anticipated Satisfaction. Internal reliability of subscales was acceptable to good (α = 0.755-0.903). Generally, convergent validity was found between the identified subscales and other measures of motivation, confidence, and disinhibited eating in expected directions. No relationships were found between the subscales and predictive validity outcomes (weight change, program attendance).

CONCLUSIONS

Results indicate adequate structural and convergent validity in the WLRT, but that weight loss readiness, as measured by the WLRT, does not provide predictive validity regarding weight loss or attendance outcomes in this sample. Nonetheless, this measure offers clinical utility in fostering thoughtful conversations about weight loss. The WLRT uniquely focuses on long-term maintenance of behavior change and differentiates between exercise-related and non-exercise confidence. Future studies should further probe the utility of this measure in other populations and the contexts in which it is being used.

Web-Based Intervention to Act for Weight Loss in Adults With Type 2 Diabetes With Obesity (Chance2Act): Protocol for a Nonrandomized Controlled Trial

BACKGROUND

In adults with type 2 diabetes (T2D), weight loss can improve hemoglobin A1c, blood pressure, and triglycerides, and reduce the frequency of medications needed. Unfortunately, a large proportion of these individuals are not ready to initiate weight efforts, making existing obesity management strategies less effective. Many digital health interventions aim at weight loss, but there is still limited evidence on their effectiveness in changing weight loss behavior, especially in adults with T2D.

OBJECTIVE

This study aims to develop and validate "Chance2Act," a new web-based intervention, designed specifically to facilitate behavioral change in adults with T2D with obesity who are not ready to act toward weight loss. Then, the effectiveness of the newly developed intervention will be determined from a nonrandomized controlled trial.

METHODS

A web-based intervention will be developed based on the Transtheoretical Model targeting adults with T2D with obesity who are not ready to change for weight loss. Phase 1 will involve the development and validation of the web-based health intervention module. In phase 2, a nonrandomized controlled trial will be conducted in 2 government health clinics selected by the investigator. This is an unblinded study with a parallel assignment (ie, intervention vs control [usual care] with an allocation ratio of 1:1). A total of 124 study participants will be recruited, of which 62 participants will receive the Chance2Act intervention in addition to the usual care. The primary outcome is the changes in an individual's readiness from a stage of not being ready to change (precontemplation, contemplation, or preparation stage) to being ready for weight loss (action stage). The secondary outcomes include changes in self-efficacy, decisional balance, family support for weight loss, BMI, waist circumference, and body fat composition.

RESULTS

The phase 1 study will reveal the intervention's validity through the Content Validity Index and Face Validity Index, considering it valid if both indices exceed 0.83. The effectiveness of the intervention will be determined in phase 2, where the differences within and between groups will be analyzed in terms of the improvement of stages of change and all secondary outcomes as defined in the methodology. Data analysis for phase 2 will commence in 2024, with the anticipated publication of results in March 2024.

CONCLUSIONS

If proven effective, the result of the study may give valuable insights into the effective behavioral modification strategies for a web-based intervention targeting adults with T2D with obesity but not yet ready to change for weight loss. This intervention may be replicated or adopted in different settings, focusing on behavioral modification support that patients need. This study offers a deeper understanding of the application of behavior change techniques for a more holistic approach to obesity care in T2D.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05736536; https://clinicaltrials.gov/study/NCT05736536.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/48313.

The Stress of Advancement: A Nurse Practitioner's Exploration in Providing Culturally Competent Obesity Prevention Counseling in Black Women

BACKGROUND

Black women are diagnosed, disabled, and die from obesity and associated chronic diseases at higher rates than any other sex or race. Advanced practice registered nurses (APRN) can potentially improve culturally relevant health education and counseling by using health literacy communication tools.

OBJECTIVE

Explore individualized barriers and APRNs' role in providing obesity prevention education and counseling by assessing the efficacy of the Teach-Back Method (TBM) to understand health habits and attitudes.

METHODS

Black women aged 18-45, previously diagnosed as overweight or obese, and identified with perceived barriers were recruited from a predominantly Black church in Atlanta. They engaged in weekly, 1-hour educational sessions via Zoom, addressing four common barriers identified in the literature. Sessions ended with a 5-10 minute Teach-Back session. Pre- and post-intervention Readiness to Change Questionnaire (RCQ) were completed. Descriptive statistics and quantitative data from surveys and pre- and post-RCQ were analyzed.

RESULTS

Twenty women completed the intervention. Paired sample t-test revealed no statistical significance or correlation between pre- and post-RCQ scores after using TBM in educational sessions. However, Pearson's correlation showed positive associations between elevated body mass index levels as one advances their education and annual income, with a p-value of 0.05.

DISCUSSION

Increased rates of obesity are experienced despite higher educational attainment or pay. Stress and high-coping mechanisms contributed to disordered eating, decreased physical activity engagement, and decreased motivation toward habit change. Clinicians should be held accountable for delivering culturally sensitive care using the TBM, addressing social determinants of health, performing routine stress assessments, and checking their implicit biases.

Relationships examined: Parent and child readiness to change and sociodemographic characteristics in family based weight loss treatment

BACKGROUND

Family based treatment is an effective, multipronged approach to address obesity as it plagues families.

OBJECTIVE

To investigate the relationships among sociodemographic characteristics (e.g., education and income), body mass index (BMI) and race/ethnicity with readiness to change for parents enrolled in the Primary care pediatrics, Learning, Activity and Nutrition (PLAN) study.

METHODS

Multivariate linear regressions tested two hypotheses: (1) White parents will have higher levels of baseline readiness to change, when compared to Black parents; (2) parents with higher income and education will have higher levels of readiness to change at baseline.

RESULTS

A positive relationship exists between baseline parent BMI and readiness to change (Pearson correlation, 0.09, p < 0.05); statistically significant relationships exist between parent education level (-0.14, p < 0.05), income (0.04, p < 0.05) and readiness to change. Additionally, a statistically significant relationship exists, with both White (β, -0.10, p < 0.05), and Other, non-Hispanic (-0.10, p < 0.05) parents exhibiting lower readiness to change than Black, non-Hispanic parents. Child data did not indicate significant relationships between race/ethnicity and readiness to change.

CONCLUSIONS

Results demonstrate that investigators should consider sociodemographic characteristic factors and different levels of readiness to change in participants enrolling in obesity interventions.

Self-management program and Black women with hypertension: Randomized controlled trial substudy

The prevalence of hypertension (HTN) among Black women in the United States has increased over the past 10 years with a decline in levels of HTN awareness, treatment, and control. Higher death rates occur in Black women from HTN-related diseases when compared with women of other racial/ethnic groups. Although interventions aimed at self-care/self-management are vital to adults becoming the cornerstone of their own health and well-being, there is a paucity of research in Black women. This randomized controlled pilot trial substudy examined the influence of a Chronic Disease Self-Management Program (CDSMP) with tailored coaching versus the CDSMP alone on blood pressure (BP), weight, and scores on self-care questionnaires and medication adherence for Black women with HTN over 9 months. Eighty-three women who had completed the CDSMP were randomly assigned to coaching or no coaching. Median age was 54 years and the time since the HTN diagnosis was 9 years. Significant differences were noted in self-care maintenance and management over time with better self-care in the treatment group. Though not significant, both groups denoted a trend toward better medication adherence. Almost 60% of the participants in both groups showed improvements in their systolic and/or diastolic BP. However, there was no significant difference between the study groups' BP and weight variables. The CDSMP was effective in decreasing BP and improving medication adherence. Further research is needed to evaluate effective coaching strategies that motivate Black women with HTN toward self-care management.

Adherence to CPAP Treatment: Can Mindfulness Play a Role?

Obstructive sleep apnea (OSA) is considered a chronic disease that requires long-term multidisciplinary management for effective treatment. Continuous Positive Airway Pressure (CPAP) is still considered the gold standard of therapy. However, CPAP effectiveness is limited due to poor patients' adherence, as almost 50% of patients discontinue treatment after a year. Several interventions have been used in order to increase CPAP adherence. Mindfulness-based therapies have been applied in other sleep disorders such as insomnia but little evidence exists for their application on OSA patients. This review aims to focus on the current data on whether mindfulness interventions may be used in order to increase CPAP adherence and improve the sleep quality of OSA patients. Even though controlled trials of mindfulness and CPAP compliance remain to be performed, this review supports the hypothesis that mindfulness may be used as an adjunct method in order to increase CPAP adherence in OSA patients.

Clinical efficacy of a virtual reality tool for the treatment of obesity: study protocol of a randomised controlled trial

INTRODUCTION

Previous research has shown that it is feasible to integrate motivational interviewing techniques with behavioural and psychological interventions for the treatment of obesity. Moreover, these combined interventions have the potential to improve health-related outcomes of people living with obesity (PLWO) and to afford maintenance of behavioural changes over time. In addition, the use of virtual reality (VR) embodiment techniques in the treatment of eating disorders and obesity has promising preliminary effectiveness. The objective of this study is to assess the clinical efficacy of a VR intervention that uses embodiment and body-swapping techniques and has been specifically developed to cover the needs of PLWO.

METHODS AND ANALYSIS

A randomised control trial will be carried out with an estimated sample of 96 participants with body mass index (BMI)>30. The whole duration of the trial will be 12 months. Participants will be recruited from the external consultations of the Vall d'Hebron University Hospital and be randomly assigned to three groups. The experimental group 1 will engage in a virtual self-conversation using the ConVRself platform, the experimental group 2 will participate in a 'pre-established discourse' provided by the virtual counsellor, who will give psychoeducation advice, and the control group will continue with treatment as usual. Readiness to change, BMI, eating habits and physical activity, psychological well-being, body image satisfaction, quality of life in relation to body image, and weight bias internalisation will be assessed at baseline, post intervention, 1-week and 4-week follow-up. Finally, variables related to adherence and satisfaction with the VR tool will be evaluated for the experimental groups.

ETHICS AND DISSEMINATION

This study was approved by the Research Projects Committee of the Vall d'Hebron University Hospital. Findings will be disseminated through peer-reviewed journals, reports to the funding body, conferences and other events for the scientific and clinical community, and the general public.

TRIAL REGISTRATION NUMBER

NCT05094557.

Psychological Aspects of Treatment with Intragastric Balloon for Management of Obesity: A Systematic Review of the Literature

INTRODUCTION

Optimizing maintenance of weight loss for people with obesity following intragastric balloon (IGB) therapy hinges on the degree to which health care providers can recognize both the impact of emotional problems and mood difficulties on their capacity to self-manage, and requirements for additional support. However, there is limited research on the psychological correlates of IGB therapy. This systematic review, for the first time, attempts to identify and synthesize the empirical evidence for the reciprocal influence between psychological variables and IGB outcomes.

METHODS

A literature search was performed in the PubMed, SCOPUS, MEDLINE, and Google Scholar databases. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed using rigorous inclusion criteria and screening by at least 2 reviewers. The selected articles were assessed for quality using the Strengthening the Reporting of Observational Studies Epidemiology (STROBE) checklist. Data were extracted to address the review aims and presented as a narrative synthesis. The review protocol was preregistered (Prospero CRD42019121291).

RESULTS

A total of 16,179 titles, 14,369 abstracts, and 51 full-text articles were screened, of which 16 studies were included. Findings suggest that female gender, older age, basic educational level, and single/divorced civil status, together with lower levels of depression, binge eating, higher perceived quality of life, and motivation to change were predictors of enhanced IGB treatment outcomes. Dissatisfaction with treatment was higher in those with impaired obesity-related social-life difficulties. The IGB treatment was effective in reducing weight and improving depression, anxiety, eating disorder symptoms, and the overall life quality of patients with obesity - mainly within 6 months from the device positioning and in conjunction with conventional therapies.

DISCUSSION/CONCLUSION

In line with the available literature on obesity and bariatric surgery interventions, poor mental health appears to be an important barrier for successful weight loss among patients with obesity undergoing IGB treatment. In order to improve the efficacy and effectiveness of the IGB therapy, more comprehensive and standardized studies are needed to provide insight into the psychological mechanisms maintaining weight management issues.

Personality and Body Mass Index in U.S. Military Veterans: Results from the National Health and Resilience in Veterans Study

The relationship between the "Big 5" personality dimensions and body mass index (BMI) were examined in a nationally representative sample (National Health and Resilience in Veterans Study) of male and female U.S. military veterans. Multivariable analyses were conducted to evaluate gender-specific associations between personality factors and BMI. Among male veterans, greater extraversion was associated with higher BMI, (β = 0.18), while lower conscientiousness (β = -0.18), agreeableness (β = -0.18), and emotional stability (β = -0.17) were associated with lower BMI. Among female veterans, only greater consciousness was associated with lower BMI. These associations were robust to effects of age, physical activity, depression, and posttraumatic stress disorder. The "Big 5" personality dimensions are differentially associated with BMI in male and female veterans. While conscientiousness was associated with lower BMI in both male and female veterans, three additional personality dimensions were linked to BMI in male veterans. Implications of these findings for obesity management are discussed.

Improving CPAP Adherence in Adults With Obstructive Sleep Apnea Syndrome: A Scoping Review of Motivational Interventions

Objective: This scoping review aims to provide an accessible summary of available evidence on the efficacy of motivational interventions to increase adherence to Continuous Positive Airway Pressure (CPAP) among patients with Obstructive Sleep Apnea Syndrome (OSAS) and of their specific aspects and strategies by assessing adherence measures. Methods: A literature search was performed in PubMed, Scopus, Medline, PsycINFO, and Web of Science databases using the concepts of "obstructive sleep apnea syndrome," "continuous positive airway pressure," "motivational intervention," and "adherence." Rigorous inclusion criteria and screening by at least two reviewers were applied. Data were extracted to address the review aims and were presented as a narrative synthesis. Results: Search for databases produced 11 randomized controlled trials, all including naïve CPAP users. Findings showed that motivational interventions were more effective than usual care and educational programs in increasing adherence to CPAP, despite results were not always maintained over time across studies. Discussion: To our knowledge, this is the first scoping review of the literature aimed to explore the characteristics and impact of motivational interventions to promote adherence to CPAP in patients with OSAS. More research providing a detailed description of motivational strategies, and testing of their association with positive treatment outcomes via both direct and indirect measures are needed to increase awareness on active mechanisms of change.

Motivation and reward mechanisms in health behavior change processes

With increasing prevalence of lifestyle-related chronic diseases worldwide, understanding health behavior change and the development of successful interventions to support lifestyle modification is gaining increasing interest among politicians, scientists, therapists and patients alike. A number of health behavior change theories have been developed aiming at explaining health behavior change and understanding the domains that make change more likely. Until now, only few studies have taken into account automatic, implicit or non-cognitive aspects of behavior, including emotion and positive affect. Recent progress in the neuroscience of motivation and reward systems can provide further insights into the relevance of such domains. In this integrative review, we present a description of the possible motivation and reward systems (approach/wanting = pleasure; aversion/avoiding = relief; assertion/non-wanting = quiescence) involved in behavior change. Therefore, based on established theories encompassing both initiation and maintenance of behavior change, we create a flexible seven-stage behavior change process with three engagement phases (non-engagement, motivational engagement, executive engagement) and relate the motivation and reward systems to each of these stages. We propose that either appetitive (preferably) or aversive motivational salience is activated during motivational engagement, that learning leads to continued behavior and that assertive salience prevails when the new behavior has become habitual. We discuss under which circumstances these mechanisms and reward-motivation pathways are likely to occur and address potential shortcomings of our proposed theoretical framework. We highlight implications for future interventions aiming at lifestyle modification.

Motivating Children and Adolescents in Obesity Treatment

Enhancing motivation is a crucial issue in pediatric obesity interventions, as behavioral changes related to food intake and physical exercise are difficult to carry out with an insufficient level of motivation. In the treatment setting, low motivation towards change may lead to early termination or inadequate treatment outcomes. This paper reviews widely-used models of motivation, including the transtheoretical model of change, self-determination theory, and motivational interviewing (MI). We introduce useful strategies based on each theoretical model to enhance motivation, such as an importance and confidence scale and a decisional balance technique. A review of recent MI interventions in children and adolescents is presented to discuss the efficacy of MI-based interventions and considerations for applying MI in pediatric obesity.

Barriers and facilitators in implementing a pilot, pragmatic, telemedicine-delivered healthy lifestyle program for obesity management in a rural, academic obesity clinic

PURPOSE

Few evidence-based strategies are specifically tailored for disparity populations such as rural adults. Two-way video-conferencing using telemedicine can potentially surmount geographic barriers that impede participation in high-intensity treatment programs offering frequent visits to clinic facilities. We aimed to understand barriers and facilitators of implementing a telemedicine-delivered tertiary-care, rural academic weight-loss program for the management of obesity.

METHODS

A single-arm study of a 16-week, weight-loss pilot evaluated barriers and facilitators to program participation and exploratory measures of program adoption and staff confidence in implementation and intervention delivery. A program was delivered using video-conferencing within an existing clinical infrastructure. Elements of Consolidated Framework for Implementation Research (CFIR) provided a basis for assessing intervention characteristics, inner and outer settings, and individual characteristics using surveys and semi-structured interviews. We evaluated elements of the RE-AIM model (reach, adoption) to assess staff barriers to success for future scalability.

FINDINGS

There were 27 patients and 8 staff completing measures. Using CFIR, the intervention was valuable from a patient participant standpoint; staff equally had positive feelings about using telemedicine as useful for patient care. The RE-AIM framework demonstrated limited reach but willingness to adopt was above average. A significant barrier limiting sustainability was physical space for intervention delivery and privacy and dedicated resources for staff. Scheduling stressors were also a challenge in its implementation.

CONCLUSIONS

The need to engage staff, enhance organizational culture, and increase reach are major factors for rural health obesity clinics to enhance sustainability of using telemedicine for the management of obesity.

TRIAL REGISTRATION

Clinicaltrials.gov NCT03309787. Registered on 16 October 2017.

Lifestyle-related advice in the management of obesity: A step-wise approach

Obesity is a commonly encountered health-care problem that is an independent risk factor for chronic metabolic complications. Primary care physicians are the first point of contact in the management of obesity. Weight management is a step-wise intensification of interventions that initiates with lifestyle modification. Dietary and physical activity advices are integral components of all weight loss consultations and should ideally be imparted by a dietician or a nutritionist. In case of their nonavailability, the onus for lifestyle counseling rests with the physician. The prescription for a low-calorie diet coupled with increased physical activity might seem simple, but the success lies in compliance and sustainability of this advice. Compliance can be enhanced through patient-specific diet and activity plans along with corrections in eating and activity behavior. Barriers in patient's environment must also be addressed to achieve sustainable weight loss. This review covers practical insights in standard lifestyle management techniques, which can help the physicians to set better weight loss goals, adapt to patient specific lifestyle counseling, and apply strategies to enhance compliance for sustained weight loss.

Factors Associated with Tendency for Weight Loss in a Representative Sample of Children and Adolescents: The CASPIAN-V Study

Background:

This study aims to determine the factors affecting the tendency to lose weight (TLW) and its methods in Iranian children and adolescents.

Methods:

In this cross-sectional nationwide study 14800 students, aged 7–18 years, living in 30 provinces of Iran were selected via multistage cluster random sampling method. The dietary and physical activity habits and TLW as well as psychosocial health status, anxiety, self-satisfaction, and change in dietary behaviors were assessed by the global school-based student health survey (WHO-GSHS) questionnaire. Multivariate logistic regression model was used to identify factors influencing TLW.

Results:

Overall, 14274 students (participation rate of 99%), consisting of 51% boys and 71.4% urban residents, completed the study. Of them, 37.7% (51.4% Girls and 48.6% boys) tended to lose weight. In multivariate model, the odds for TLW was 12% higher in students aged 13–18 years than those aged 6–12 years (OR = 1.12, 95% CI: 1.02 to 1.23; P < 0.001). Students with high anxiety level were 43% more likely to have TLW (OR = 1.43, 95% CI: 1.28–1.59; P < 0.001). The odds of increasing physical activity for weight loss was 22% lower in obese than in normal weight students (OR = 0.78, 95% CI: 0.66 to 0.93; P < 0.001).

Conclusions:

TLW was significantly higher in girls, as well as in those with higher anxiety level. In addition to dietary change, increasing physical activity should be encouraged among children and adolescents with excess weight. Public education regarding proper lifestyle change for reaching healthy weight should be underscored.

Psychological Well-Being as an Independent Predictor of Exercise Capacity in Cardiac Rehabilitation Patients With Obesity

Objective: Exercise capacity (EC) is a well-established predictor of cardiovascular health. It is notoriously influenced by several factors, but the independent effect of psychological well-being (PWB) on EC has not yet been explored. The present study aims to investigate (1) whether PWB is an independent predictor of EC over and above selected demographic, behavioral, and biomedical parameters in a sample of CR patients with obesity and (2) whether PWB is a stronger predictor of EC than the other variables.

Methods: Data from 1968 patients were collected at the time of their inclusion in a cardiac rehabilitation (CR) program and retrospectively analyzed in a cross-sectional study. Since cardiorespiratory parameters defined in normal weight populations differ from those of their obese counterparts, an ad hoc validated formula taking body mass index (BMI) into consideration was used to predict EC.

Results: A multiple regression analysis revealed left ventricular eject fraction (LVEF) to be the strongest predictor of EC, followed by PWB, type 2 diabetes (DM), smoking status, atrial fibrillation (AF), and education. Bayesian evaluation of informative hypotheses corroborated LVEF as the best predictor of EC, and confirmed the superiority of PWB over and above DM and smoking status in influencing EC.

Conclusion: These findings strengthen the link between psychological and physical health, suggesting a better PWB is associated with greater EC. Prompt screening of a patient’s mood and readiness to perform an active lifestyle would therefore enhance the long-term health benefits of CR.

What predicts regression from pre-diabetes to normal glucose regulation following a primary care nurse-delivered dietary intervention? A study protocol for a prospective cohort study

INTRODUCTION

Pre-diabetes is a high-risk state for the development of type 2 diabetes mellitus (T2DM) and cardiovascular disease. Regression to normoglycaemia, even if transient, significantly reduces the risk of developing T2DM. The primary aim of this mixed-methods study is to determine if there are clinically relevant differences among those with pre-diabetes and excess weight who regress to normoglycaemia, those who have persistent pre-diabetes and those who progress to T2DM following participation in a 6-month primary care nurse-delivered pre-diabetes dietary intervention. Incidence of T2DM at 2 years will be examined.

METHODS AND ANALYSIS

Four hundred participants with pre-diabetes (New Zealand definition glycated haemoglobin 41-49 mmol/mol) and a body mass index >25 kg/m² will be recruited through eight primary care practices in Hawke's Bay, New Zealand. Trained primary care nurses will deliver a 6-month structured dietary intervention, followed by quarterly reviews for 18 months post-intervention. Clinical data, data on lifestyle factors and health-related quality of life (HR-QoL) and blood samples will be collected at baseline, 6 months, 12 months and 24 months. Sixty participants purposefully selected will complete a semi-structured interview following the 6-month intervention. Poisson regression with robust standard errors and clustered by practice will be used to identify predictors of regression or progression at 6 months, and risk factors for developing T2DM at 2 years. Qualitative data will be analysed thematically. Changes in HR-QoL will be described and potential cost savings will be estimated from a funder's perspective at 2 years.

ETHICS AND DISSEMINATION

This study was approved by the Northern A Health and Disability Ethics Committee, New Zealand (Ethics Reference: 17/NTA/24). Study results will be presented to participants, published in peer-reviewed journals and presented at relevant conferences.

TRIAL REGISTRATION NUMBER

ACTRN12617000591358; Pre-results.

The implementation of the coaching on lifestyle (CooL) intervention: lessons learnt

Background

Combined lifestyle interventions (CLIs) are designed to help people who are overweight or obese maintain a healthy new lifestyle. The CooL intervention is a CLI in the Netherlands, in which lifestyle coaches counsel adults and children (and/or their parents) who are obese or at high risk of obesity to achieve a sustained healthier lifestyle. The intervention consists of coaching on lifestyle in group and individual sessions, addressing the topics of physical activity, dietary behaviours, sleep, stress management and behavioural change. The aim of this study was to evaluate the implementation process of the Coaching on Lifestyle (CooL) intervention and its facilitating and impeding factors.

Methods

Mixed methods were used in this action-oriented study. Both quantitative (number of referrals, attendance lists of participants and questionnaires) and qualitative (group and individual interviews, observations, minutes and open questions) data were collected among participants, lifestyle coaches, project group members and other stakeholders. The Consolidated Framework for Implementation Research was used to analyse the data.

Results

CooL was evaluated by stakeholders and participants as an accessible and useful programme, because of its design and content and the lifestyle coaches’ approach. However, stakeholders indicated that the lifestyle coaches need to become more familiar in the health care network and public sectors in the Netherlands. Lifestyle coaching is a novel profession and the added value of the lifestyle coach is not always acknowledged by all health care providers. Lifestyle coaches play a crucial role in ensuring the impact of CooL by actively networking, using clear communication materials and creating stakeholders’ support and understanding.

Conclusion

The implementation process needs to be strengthened in terms of creating support for and providing clear information about lifestyle coaching. The CooL intervention was implemented in multiple regions, thanks to the efforts of many stakeholders. Lifestyle coaches should engage in networking activities and entrepreneurship to boost the implementation process. It takes considerable time for a lifestyle coach to become fully incorporated in primary care.

Trial registration

NTR6208; date registered: 13–01-2017; retrospectively registered; Netherlands Trial Register.

Electronic supplementary material

The online version of this article (10.1186/s12913-019-4457-7) contains supplementary material, which is available to authorized users.

Readiness for weight change and its association with diet knowledge and skills, diet decision making and diet and exercise barriers in patients with type 2 diabetes

AIMS

this study aimed to investigate stages of weight change in type 2 diabetics and its associations with diet knowledge and skills, diet decision making, diet and exercise barriers.

MATERIALS AND METHODS

This was a cross-sectional study of 1139 patients with type 2 diabetes aged>18 years in East Azerbaijan, Iran. Data were collected using the Personal Diabetes Questionnaire (PDQ) and were analyzed using SPSS software (version 22) and descriptive statistics, Chi-square and one-way ANOVA tests.

RESULTS

48.1% of the patients were in the pre-contemplation stage. 7.5%, 14.6% and 29.8% of patients were in the stages of contemplation, preparation and action, respectively. Patients with a higher score in diet knowledge and skills and diet decision making were more likely to be involved in the action stage of weight loss process, while those who had more eating problems and exercise barriers were less likely to be involved in the action stage of weight loss.

CONCLUSION

The results of this study showed that a substantial percentage of patients are at the pre-contemplation stage, so proper measures are needed to inform patients about the consequences of obesity and overweight. It is also necessary to focus on people with poor incomes and education status and those living in rural areas. Improve diet knowledge and skills and diet decision making and the reduction of barriers to exercise can help patients to take action to lose weight.

Readiness for diet change and its association with diet knowledge and skills, diet decision making and diet barriers in type 2 diabetic patients

AIMS

to investigate stages of change for dietary in type 2 diabetics and its associations with diet knowledge and skills, diet decision making and diet barriers.

MATERIALS AND METHODS

This was a cross-sectional study which was conducted on 1139 diabetics aged>18 years in East Azerbaijan, Iran. Data were collected through a Personal Diabetes Questionnaire (PDQ) and analyzed through SPSS version 22 software using descriptive statistics, Chi-square and one-way ANOVA tests. Tukey's HSD post hoc tests were applied to illustrate ANOVA findings.

RESULTS

59.3% of patients do not follow a diet plan to control their blood glucose. 44.7%, 5.5%, 13%, and 36.8% of patients, respectively, were in the stages of pre-contemplation, contemplation, preparation and action. Patients who had shorter disease duration and those whose current treatment was lifestyle change were more likely within the action stage. Also, patients who had a higher score in diet knowledge and skills and diet decision making and those who had a lower score in diet barriers were more likely in the action stage of change.

CONCLUSION

Based on the results of this study, a considerable proportion of diabetic patients were in the pre-contemplation stage. Diet knowledge and skills, diet decision making and diet barriers were factors contributing to diet readiness to change. Therefore, taking necessary measures to increase diet knowledge, skills and diet decision-making and a reduction in diet barriers can help people with type 2 diabetes to change diet.

Psychometric Properties of the Persian Version of Weight Efficacy Lifestyle Questionnaire-Short Form

Background:

Currently, in low- and middle-income countries, the problem of overweight and obesity is increasing at alarming rate. Along with well-known factors, psychosocial factors such as low self-efficacy highly associated with these problems. Hence, it is necessary to assess individual self-efficacy in weight management consultations using valid instrument. The aim of this study was to determine psychometric properties of the Persian version of the Weight Efficacy Lifestyle Questionnaire-Short Form (WEL-SF).

Methods:

A cross-sectional study carried out on 400 women referring to urban community health centers in Kerman Province, Iran. Data collected using a questionnaire contained demographic data and Persian version of WEL-SF. The reliability of the questionnaire determined using Cronbach's alpha. The construct validity evaluated by exploratory principal component analysis (PCA) and confirmatory factor analysis. Data were analyzed by SPSS version 19 and Lisrel 8.8.

Results:

Internal consistency of WEL-SF was 0.83 using Cronbach's alpha. In the PCA, two factors were extracted with the total amount of 62.6% explained variance. In confirmatory factor analysis, the model had acceptable goodness of fit indices.

Conclusions:

The Persian version of WEL-SF had excellent psychometric properties.

Caregiver's readiness for change as a predictor of outcome and attendance in an intervention programme for children and adolescents with obesity: a secondary data analysis

OBJECTIVE/DESIGN

It remains unclear as to the efficacy of readiness for change measurements in child and adolescent obesity intervention programmes. This observational study aimed to determine whether the caregiver's stage of change could predict outcome and adherence to treatment in an intensive intervention programme for children and adolescents with obesity.

SETTING

Participants were from the Whānau Pakari randomised clinical trial, a community based multi-disciplinary intervention programme for obesity in Taranaki, New Zealand.

PARTICIPANTS

Eligible participants (recruited January 2012 to August 2014) were aged 5-16 years and had a body mass index (BMI) ≥98th centile or BMI >91st centile with weight-related comorbidities.

INTERVENTIONS

This study only assessed participants randomised to the high-intensity intervention programme (6-month assessments with weekly group sessions for 12 months) given attendance data were required (n=96).

PRIMARY AND SECONDARY OUTCOME MEASURES

Primary trial outcome was BMI SD score (SDS). Secondary outcome measures included indices such as fruit and vegetable intake, 550-m run/walk time and quality of life scores. At baseline assessment, participants (if >11 years old) and their accompanying adult were assessed for readiness to make healthy lifestyle change.

RESULTS

A quantitative measure of stage of change in caregivers was not a predictor of primary or secondary outcomes (change in BMI SDS pre-contemplation/contemplation -0.08, 95% CI -0.18 to 0.03, action -0.16, 95% CI -0.27 to -0.05, p=0.27), or overall attendance in the weekly activity sessions (40.0% vs 37.1%, respectively, p=0.54) in the child or adolescent.

CONCLUSIONS

Caregiver's stage of change was not a predictor of success in this multi-disciplinary assessment and intervention programme for children and adolescents with obesity. Future research needs to determine participants' factors for success.

TRIAL REGISTRATION NUMBER

ANZCTR12611000862943; Post-results.

Weight perceptions, weight management practices, and nutritional status of emerging adults living in the Accra Metropolis

Background

Many young people have a tendency to be concerned about their physical appearance and undertake practices in order to achieve certain body ideals. There is however limited information from developing countries on the weight perceptions of emerging adults (i.e. individuals leaving the adolescence life stage and preparing to take on adulthood) and whether these opinions influence their nutritional status and weight management practices. This study sought to assess emerging adults' nutritional status, their weight perceptions and the methods they use to manage their weight.

Methods

This study was cross-sectional, involving emerging adults (N = 192) recruited at shopping areas in the Accra Metropolis of Ghana. A pretested questionnaire was used to collect information on demographic characteristics, weight perceptions, and weight management strategies. Anthropometric measurements were taken using standard procedures. Descriptive analysis was performed on the demographic data, methods used to manage weight, and weight perceptions. Logistic regression was used to assess possible relationships between weight perceptions and nutritional status as well as weight perceptions and weight management practices.

Results

The mean age of participants was 21.8(2.2) years with 51.0% of participants being female. Majority of the participants perceived normal weight status as the ideal body for themselves and half of them thought that they were slimmer than they actually were in reality. Three major weight management strategies were identified: engaging in physical activity, dieting and making lifestyle modifications (i.e. changes in normal eating habits coupled with regular physical activity and behavioral changes). Emerging adults who had an inaccurate body image perception were less likely (OR = 0.30, 95% CI: 0.15-0.61) to have a healthy nutritional status than emerging adults who had an accurate body image perception.

Conclusion

Weight perception was associated with nutritional status. Discussions with nutrition professionals regarding realistic weight ideals would be beneficial for this age-group since half of the study's participants had inaccurate perceptions about their current weight statuses even though their statuses were normal.

A Self-Directed Mobile Intervention (WaznApp) to Promote Weight Control Among Employees at a Lebanese University: Protocol for a Feasibility Pilot Randomized Controlled Trial

Background

Overweight and obesity have become major health problems globally with more than 1.9 billion overweight adults. In Lebanon, the prevalence of obesity and overweight is 65.4% combined. Risk factors of obesity and overweight are preventable and can be addressed by modifications in the environment and in an individual’s lifestyle. Mobile technologies are increasingly used in behavioral, self-directed weight management interventions, providing users with additional opportunities to attain weight control (weight loss, weight gain prevention, etc). Mobile apps may allow for the delivery of Just-in-Time Adaptive Interventions (JITAIs), which provide support through skill building, emotional support, and instrumental support, following the participants’ progress. A few commercially available apps offer JITAI features, but no studies have tested their efficacy.

Objective

The primary objective of this study is to examine the feasibility of a self-directed weight loss intervention, targeting employees of an academic institution, using a virtual coaching app with JITAI features (Lark) and a self-help calorie-counting app (MyFitnessPal). The secondary objective is to estimate the effects of the intervention on main study outcomes.

Methods

This study is a single-center, parallel, randomized controlled trial with 2 study arms (intervention and control). Participants will be randomly allocated in equal proportions to the intervention (Lark) and control groups (MyFitnessPal). To be eligible for this study, participants must be employed full- or part-time at the university or its medical center, able to read English, have a smartphone, and be interested in controlling their weight. Recruitment strategies entail email invitations, printed posters, and social media postings. We will assess quantitative rates of recruitment, adherence, and retention, self-reported app quality using the user version of the Mobile App Rating Scale. We will also assess changes in weight-related outcomes (absolute weight and waist circumference), behavioral outcomes (physical activity and diet), and cognitive factors (motivation to participate in the trial and to manage weight).

Results

WaznApp was funded in June 2017, and recruitment started in March 2018.

Conclusions

This study will provide information as to whether the selected mobile apps offer a feasible solution for promoting weight management in an academic workplace. The results will inform a larger trial whose results might be replicated in similar workplaces in Lebanon and the Middle East and North Africa region, and will be used as a benchmark for further investigations in other settings and similar target groups.

Trial Registration

ClinicalTrials.gov NCT03321331; https://clinicaltrials.gov/ct2/show/NCT03321331 (Archived by WebCite at http://www.webcitation.org/6ys9NOLo5)

Registered Report Identifier

RR1-10.2196/9793

A randomized controlled trial of an individualized nutrition counseling program matched with a transtheoretical model for overweight and obese females in Thailand

BACKGROUND/OBJECTIVE

Effective weight reduction remains a challenge throughout the world as the prevalence of obesity and its consequences are increasing. This study aimed to determine the effects of an individualized nutrition counseling program (IC) matched with a transtheoretical model (TTM) for overweight and obese subjects.

SUBJECTS/METHODS

Fifty overweight and obese subjects aged 19-60 years with a body mass index ≥ 23 kg/m² were enrolled in the weight reduction study. They were randomized into two groups: Intervention group received an IC matched with a TTM; control group received an educational handbook. Body weight (BW), body fat (BF), waist circumference (WC), waist to height ratio (WHtR), stages of change (SOC), processes of change (POC), food intake, and physical activity (PA) were assessed at baseline and at 4, 8, and 12 weeks after program initiation in both groups. All data were analyzed by intention-to-treat, using SPSS software for hypothesis testing.

RESULTS

Forty-five female subjects were included in the 12-week trial at Ramkhamhaeng Hospital, Bangkok, Thailand. The results showed significant weight loss (1.98 ± 1.75 kg; 3% loss of initial weight) in the intervention group at 12 weeks, compared to a 0.17 ± 1.67 kg loss in the control group. There were significant differences between intervention and control groups in BF mass (-1.68 ± 1.78, -0.04 ± 1.62 kg); percentage BF (-1.54 ± 2.11, 0.08 ± 2.05); WC (-5.35 ± 3.84, 0.13 ± 3.23 cm); WHtR (-0.0336 ± 0.02, -0.0004 ± 0.02), and energy consumption (-405.09 ± 431.31, -74.92 ± 499.54 kcal/day) in the intervention and control groups, respectively. Intragroup SOC was improved in both groups. The POC for the weight management action (WMA) process was significantly different with POC scores increasing by 16.00 ± 11.73 and 7.74 ± 14.97 in the intervention and the control groups, respectively. PA level did not change in either group.

CONCLUSIONS

The IC matched with a TTM resulted in reductions in BW, BF, and WC, thus reducing likely health risks by decreasing energy intake and inducing positive behavior changes while enhancing the WMA process.

Cognitive behavioral therapy to aid weight loss in obese patients: current perspectives

Obesity is a chronic condition associated with risk factors for many medical complications and comorbidities such as cardiovascular diseases, some types of cancer, osteoarthritis, hypertension, dyslipidemia, hypercholesterolemia, type-2 diabetes, obstructive sleep apnea syndrome, and different psychosocial issues and psychopathological disorders. Obesity is a highly complex, multifactorial disease: genetic, biological, psychological, behavioral, familial, social, cultural, and environmental factors can influence in different ways. Evidence-based strategies to improve weight loss, maintain a healthy weight, and reduce related comorbidities typically integrate different interventions: dietetic, nutritional, physical, behavioral, psychological, and if necessary, pharmacological and surgical ones. Such treatments are implemented in a multidisciplinary context with a clinical team composed of endocrinologists, nutritionists, dietitians, physiotherapists, psychiatrists, psychologists, and sometimes surgeons. Cognitive behavioral therapy (CBT) is traditionally recognized as the best established treatment for binge eating disorder and the most preferred intervention for obesity, and could be considered as the first-line treatment among psychological approaches, especially in a long-term perspective; however, it does not necessarily produce a successful weight loss. Traditional CBT for weight loss and other protocols, such as enhanced CBT, enhanced focused CBT, behavioral weight loss treatment, therapeutic education, acceptance and commitment therapy, and sequential binge, are discussed in this review. The issue of long-term weight management of obesity, the real challenge in outpatient settings and in lifestyle modification, is discussed taking into account the possible contribution of mHealth and the stepped-care approach in health care.

Stages of change in obesity and weight management: factorial structure of the Italian version of the University of Rhode Island Change Assessment Scale

PURPOSE

To examine the factorial structure of the University of Rhode Island Change Assessment Scale (IT-URICA) for weight management in a sample of Italian overweight and obese patients enrolled in a nutritional rehabilitation program.

METHODS

334 inpatients completed the translated and adjusted version of the IT-URICA at admission to the hospital. Psychometric testing included confirmatory factor analysis and internal consistency (Cronbach's α).

RESULTS

The IT-URICA for weight management was successfully translated into Italian, and the factorial analysis confirmed the four-factor solution of the commonly accepted version of the measure.

CONCLUSION

High levels of RTC are considered critical to the long-term success of weight management, and the IT-URICA may be an appropriate measure of motivational readiness for use among Italian overweight and obese patients. Its use is, therefore, recommended for clinical and research purposes.

The MOTIV-HEART Study: A Prospective, Randomized, Single-Blind Pilot Study of Brief Strategic Therapy and Motivational Interviewing among Cardiac Rehabilitation Patients

Background: Psychological distress, biomedical parameters, and unhealthy lifestyles contribute to a poorer prognosis for cardiac disease. Public health's challenge is to motivate patients to utilize self-care. Objective: This prospective, randomized, single-blind pilot study aimed at testing the incremental efficacy of Brief Strategic Therapy (BST) combined with Motivational Interviewing (MI) in improving selected biomedical and psychological outcomes over and beyond those of the stand-alone BST in a residential Cardiac Rehabilitation (CR) program. Method: Fourty-two inpatients (17 females), enrolled in a 1-month CR program, were randomly allocated into two conditions: (a) Three sessions of BST and (b) Three sessions of BST plus MI. Data were collected at baseline, discharge, and after 3 months through phone interviews. Results: At discharge, no significant between-group difference was found in any outcome variable. Changes from pre- to post-treatment within each condition showed significant improvements only in the BST group, where the level of external regulation diminished, and both the participants' self-regulation (Relative Autonomous Motivation Index, RAI) and willingness to change improved. At the 3-month follow-up, within-group analyses on responders (BST = 9; BST + MI = 11) showed a statistically significant improvement in the level of systolic blood pressure in both groups. Discussion: Findings showed no evidence of the incremental efficacy of combining BST and MI over and beyond BST alone on either selected biomedical or psychological outcomes among CR patients. Conclusions: Ends and limitations from the present pilot study should be considered and addressed in future investigations.