Exercise as a Buffer Against Stress-induced Overeating
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 49
- 试验地点
- 1
- 主要终点
- Stress-induced Overeating Measured Via Smartphone Surveys
研究概览
简要总结
The purpose of this study is to examine the psychological benefits of chronic exercise as well as the effects of exercise training on eating behaviors and stress-induced overeating in overweight and obese women. Participants will be randomized to an 12-week exercise condition or a delayed exercise condition. Assessments will occur at baseline, 6 weeks, and 12 weeks and will include answering surveys in real-time using smartphones, several assessments of eating behaviors and dietary intake, and questionnaire measures of factors which could mediate the relationship between exercise and eating. Participants will be compensated for completing assessments and for adherence to the exercise protocol.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •18-60 years of age
- •BMI 25 to <40 kg/m2
- •Physically inactive (<60 min/week of physical activity)
- •Must own a smartphone
- •Must be willing to receive and respond to text message prompts for 14 days at baseline, 6 and 12 weeks
排除标准
- •Shift workers
- •Individuals who do not endorse stress-eating
- •Recent weight loss or current enrollment in a weight loss program
- •Women who are pregnant or plan on becoming pregnant in the next 6 months
- •Any medical condition that would limit participation in physical activity
- •Inability to walk without an assisted device
- •Inability to meet exercise recommendations
- •Failure to adequately complete all baseline assessment measures
研究组 & 干预措施
Exercise condition
Participants randomized to the exercise condition will participate in a 12-week exercise training program. The exercise intervention will consist of both supervised and unsupervised exercise sessions and progress to 200 minutes/week of moderate-intensity exercise. Exercise bouts will be spread across 4-6 days and be at least 20 minutes in duration. During supervised visits, heart rate will be monitored by a member of the research staff to ensure that exercise is within the prescribed intensity range and ratings of perceived exertion and feeling state will be assessed periodically. Unsupervised exercise will be verified using objective physical activity monitors.
干预措施: Exercise intervention (Other)
Delayed exercise condition
Participants randomized to the delayed exercise condition will be asked not to change their exercise or eating habits over the 12-week period and will complete the same assessment measures as the exercise condition. However, following the completion of the 12-week period, participants will be given two options: 1) receive a one-on-one session with an exercise physiologist at our center and receive a written exercise program, and at this time point all study obligations will be completed, or 2) complete the identical exercise protocol as the 'exercise' condition.
干预措施: Delayed exercise intervention (Other)
结局指标
主要结局
Stress-induced Overeating Measured Via Smartphone Surveys
时间窗: 12 weeks
Participants completed EMA surveys (5x/day for 14 days). At each prompt they were asked if an eating episode occurred. If they indicated 'yes', they were asked to check all that apply: a) I ate past the point of feeling full, b) I ate more than usual, c) I had unplanned eating (i.e., consumed food when I don't usually eat and was not making up for a missed meal, or d) None of the above. If the participant responded with a, b, or c, it was classified as an 'overeating episode'. Further, at each prompt, participants were asked to the respond to the following: 'Right now I feel stressed' (1=not at all, 7=very much so). If the stress score was \>=5 at the prompt just prior to an overeating episode, then it was considered a 'stress-induced overeating episode'.
Percentage of Overeating Episodes Characterized as 'Overeating'
时间窗: 12 weeks
If an eating episode occurred, participants were asked to check all that apply: a) I ate past the point of feeling full, b) I ate more than usual, c) I had unplanned eating (i.e., consumed food when I don't usually eat and was not making up for a missed meal, or d) None of the above. If response was a, b, or c, it was classified as an 'overeating episode'.
次要结局
- Stress as Measured Via Questionnaire(Baseline and 12 weeks)
- Change in Body Weight (% Initial Weight)(baseline and 12 weeks)