FlexED：饮食失调的数字化、游戏化早期干预
The goal of this clinical trial is to test a new intervention for body-image distress to reduce eating disorder symptoms in young women and girls between the ages of 15-25 years old.
Participants complete up to 8 digital sessions using their mobile phone that include a character, story line and interactive exercises, games and digital rewards. Everyone in the study completes the intervention after different periods of time (2, 4 or 6 weeks) of completing assessments.
Researchers will examine the impact of the intervention on participants ability to respond flexibly to body-image distress or triggers, measuring things like heart rate, eye gaze, and reaction time to body-image related words and images, and test how long it takes to see change.
研究概览
详细说明
This multiple baseline experiment tests the impact of a digital, gamified early intervention for eating disorders on body-image psychological flexibility and assesses treatment dose. Twenty-four young women and girls with eating disorder (ED) symptoms are randomized to baseline duration between 2-6 weeks. Participants complete up to eight 20-30 minute sessions of a multimedia application using their mobile phone. Psychological flexibility is measured repeatedly using a multi-level, multi-dimensional assessment strategy of self-report and lab-based tasks assessing flexibility in cognition, affect and attention with body-image related stimuli during the baseline and treatment phases to estimate treatment effects.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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North Carolina
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Durham、North Carolina、美国、27705
- Duke University
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Female identified 15-25 years old
- Weight Concerns Scale score of >47
- Eating disorder behaviors with onset at current level <3 years
Exclusion Criteria:
- Currently meet diagnostic criteria for anorexia or bulimia nervosa
- Psychosis, substance use disorder or current suicidal ideation or self-harm.
- Start or change in psychiatric medications within the past month.
- NonEnglish Speaking.
- Presents with other specified feeding or eating disorder (OSFED) that does not includes weight/shape concerns as a primary feature (e.g., Avoidant Restrictive Food Intake Disorder).
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的：2-Week Baseline Duration
2 weeks of assessment, then 8 weeks of intervention |
Intervention consists of eight 20-30 minute sessions of a digital intervention based on Acceptance and Commitment Therapy (ACT). Participants learn skills of body image flexibility by following an avatar through a story line and completing interactive exercises. |
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实验性的：4-Week Baseline Duration
4 weeks of assessment, then 8 weeks of intervention |
Intervention consists of eight 20-30 minute sessions of a digital intervention based on Acceptance and Commitment Therapy (ACT). Participants learn skills of body image flexibility by following an avatar through a story line and completing interactive exercises. |
|
实验性的：6-Week Baseline Duration
6 weeks of assessment, then 8 weeks of intervention |
Intervention consists of eight 20-30 minute sessions of a digital intervention based on Acceptance and Commitment Therapy (ACT). Participants learn skills of body image flexibility by following an avatar through a story line and completing interactive exercises. |
|
实验性的：Condensed schedule
2 weeks of assessment, then 4 weeks of intervention (sessions twice a week) |
Intervention consists of eight 20-30 minute sessions of a digital intervention based on Acceptance and Commitment Therapy (ACT). Participants learn skills of body image flexibility by following an avatar through a story line and completing interactive exercises. |
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Change in Body Image - Acceptance and Action Questionnaire-5 (BI-AAQ-5)
大体时间：Baseline, 6-8 weeks and 12 weeks
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5-item measure assessing the ability to behave flexibly in the presence of negative thoughts and feelings about the body. Scores range from 5 to 35 with higher scores indicating greater flexibility. |
Baseline, 6-8 weeks and 12 weeks
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High Frequency Heart Rate Variability (HF-HRV)
大体时间：Baseline, 6-8 weeks, and 12 weeks
|
Heart rate variability during provocation of body image distress; greater variability indicates an increased capacity to modulate arousal and distress. Indexed by HF Power ms^2 (Induction-Rest). |
Baseline, 6-8 weeks, and 12 weeks
|
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Change From Baseline in Biased Processing of Body Image Stimuli Relative to Neutral Stimuli
大体时间：Baseline, 6-8 weeks, and 12 weeks
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Biased processing of stimuli is assessed using an emotional Stroop task with body image and neutral stimuli. Improvements are indicated by decreases in bias score (decreases in difference in reaction time between evocative and neutral stimuli). |
Baseline, 6-8 weeks, and 12 weeks
|
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CompACT-10 (Comprehensive Assessment of Acceptance and Commitment Therapy)
大体时间：Baseline, 6-8 weeks, 12 weeks
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10-item measure assessing psychological flexibility. Total scores range from 10 to 70 with higher scores indicating greater flexibility. |
Baseline, 6-8 weeks, 12 weeks
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Number of Eye Gaze Fixations on Pathology-relevant, Body-image Stimuli
大体时间：Baseline, 6-8 weeks, 12 weeks
|
Number of fixations on body and food related images presented during HF-HRV task. |
Baseline, 6-8 weeks, 12 weeks
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合作者和调查者
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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