Obesity
Conditions
Brief summary
This project aims to evaluate a newly developed Internet-delivered (via e-learning modules) acceptance-based behavioral intervention (ABTi) for individuals who are experiencing weight regain after bariatric surgery. Specifically, the investigators aim to assess ABTi's efficacy on stopping and/or reversing weight by comparing it to a wait-list control (WLC) condition. The investigators also aim to evaluate its effect on targeted weight control behaviors and acceptance-based skills. Finally, the investigators will examine the relationship between weight outcomes and changes in process variables through exploratory analyses. Treatment outcomes (i.e., weight, maladaptive behaviors, physical activity, acceptance-based skills) will be measured at assessments pre-, mid-, and post-treatment, as well as at 3 months after treatment has ended. Primary Aims. 1. To test the hypothesis that participants randomly assigned to ABTi will display greater weight loss from pre- to post-treatment than those assigned to WLC. 2. To test the hypothesis those receiving ABTi, compared to WLC, will display decreased maladaptive eating behaviors (i.e., loss of control episodes, grazing, emotional eating, disinhibition), increased physical activity, and greater improvements in acceptance-based skills (i.e., mindfulness, defusion, food-related acceptance). Exploratory Aim. (1) To assess if changes in acceptance-based skills, maladaptive eating behaviors, and physical activity are associated with pre- to post-treatment weight outcomes.
Interventions
BEHAVIORALAcceptance Based Behavioral Intervention
This intervention focuses on acceptance-based strategies with an emphasis on willingness to experience less pleasurable internal experiences (e.g., pleasure from eating calorically-dense foods) and aversive internal experiences (e.g., hunger, food cravings). Strategies to increase this willingness will be taught, including defusion (i.e., getting psychological distance from internal experiences to allow oneself to act independently of them). Mindful decision-making, as it relates to eating and exercise, will also be emphasized. Clarification and commitment to core values is another key component, as living life in accordance with one's values (e.g., health) makes willingness to make difficult choices worthwhile. Standard behavioral techniques for weight loss (i.e., self-monitoring, stimulus control, psychoeducation) will also be included.
Sponsors
Rush University Medical Center
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* Has undergone any type of weight loss surgery at least 1.5 years ago * Demonstrate ≥ 10% weight regain of maximum weight loss or 5% of their minimum weight post-surgery, with weight regain lasting for at least 3 months prior to enrollment. * Ability to give consent and speak, write, and understand English.
Exclusion criteria
* Currently enrolled in structured weight loss program * Currently pregnant/plan to become pregnant within 6 months of enrollment * Have a serious medical condition that has the potential of affecting weight or that would prevent engagement in dietary changes and/or an exercise regimen * Exhibit psychiatric symptoms that would interfere with the ability to benefit from the intervention, or report acute suicidality * Non-ambulatory (i.e., unable to walk at least one city block without a cane or walker at the time of screening * Use of medications known to affect body weight, such as chronic systemic steroids or psychiatric medications including lithium, tricyclic antidepressants, and antipsychotic agents
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Weight loss | 10 weeks |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Loss of Control Eating Scale (LOCES) | 10 weeks | LOCES measures loss of control eating. |
| Repetitive Eating Assessment-Questionnaire (Rep(eat)) | 10 weeks | Rep(eat) measures grazing behaviors. |
| Emotional Eating Scale (EES) | 10 weeks | EES will be used to measure emotional eating |
| The Eating Inventory | 10 weeks | The Eating Inventory will be used to measure disinhibition. |
| Philadelphia Mindfulness Scale (PHLMS) | 10 weeks | PHLMS will be used to measure mindfulness |
| Drexel Defusion Scale (DDS) | 10 weeks | DDS will be used to measure delusion (a psychological construct of cognitive distancing) |
| Food-Related Acceptance and Action Questionnaire (FAAQ) | 10 weeks | FAAQ will be used to measure food-related acceptance |
| Paffenbarger Physical Activity Recall | 10 weeks | Paffenbarger will be used to measure physical activity engagement |
Countries
United States
Outcome results
None listed