Exploring the Accuracy and Acceptability of Portion Size Measurement Aids in Parents of Overweight Children
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 36
- 试验地点
- 1
- 主要终点
- Accuracy of food portion size estimation
研究概览
简要总结
Portion size measurement aids (PSMAs) are tools that facilitate the estimation of food servings. The objectives of this study are to determine (a) if food portion size estimation accuracy differs when using a two dimensional (2D) PSMA (actual-size photos called Portion Size Cards) compared to a 3D PSMA (Portion Size Kit) and (b) whether differences exist in the short-term usefulness of and satisfaction with these PSMAs in a sample of parents of overweight children and youth. We hypothesize that the group that receives the 3D PSMAs will be more accurate in food portion size estimation and will be more satisfied with the tool compared to the group that receives the 2D PSMAs.
详细描述
Forty primary caregivers of overweight children and youth attending the Pediatric Centre for Weight and Health (Edmonton, AB) will be recruited. Participants will be randomly assigned to one of the two groups (2D PSMAs versus 3D PSMAs). After a brief explanation of the respective tool, participants will estimate the volumes of pre-measured rubber food portion models on a test plate. Participants will then be given the 2D or 3D PSMAs to take home with them to use in the real-world. After 2-4 weeks, participants will be telephoned by the research team to complete a brief survey to evaluate their usefulness of and satisfaction with the 2D or 3D PSMAs at home.
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
- Double (Investigator, Outcomes Assessor)
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Participants must be primary caregivers of children or youth attending a clinical appointment for weight management (clients must have a BMI greater or equal to the 85th percentile at this clinic)
- •Participants must be literate and fluent in English
排除标准
- •Any participant who does not meet the above criteria
- •Participants must not have had any previous education or resources on food portion sizes at this clinic
研究组 & 干预措施
2D Portion Size Measurment Aids (PSMAs)
The 2D PSMAs are life-size photographs of the 3D PSMAs.
干预措施: Portion Size Measurement Aids (PSMAs) (Behavioral)
3D Portion Size Measurement Aids (PSMAs)
The 3D PSMAs include foam rubber replicas of a golf ball, a hockey puck, a tennis ball and a baseball.
干预措施: Portion Size Measurement Aids (PSMAs) (Behavioral)
结局指标
主要结局
Accuracy of food portion size estimation
时间窗: At the time of subject interview (single time point)
During the initial interview, the subject receives a brief description of the task and is shown pre-estimated rubber food models. The subject then estimates the portion sizes (volumes) of the rubber food models using either 2D or 3D PSMAs.
次要结局
- Acceptability (satisfaction and usefulness) of 2D and 3D PSMAs(2-4 weeks following the accuracy assessment)
研究者
Geoff Ball
Associate Professor, Dept Pediatrics and Director, Pediatric Centre for Weight and Health
University of Alberta