Automated Harness Tightener for Child Safety Seat
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 92
- 试验地点
- 2
- 主要终点
- Change in harness tension
研究概览
简要总结
The overall objective of this study is to evaluate the efficacy of a tensioning progress indicator light to achieve proper harness tensioning in child safety seats.
详细描述
The primary objective of the study is to determine whether a prototype convertible child safety seat with visual indication of successful tensioning technology reduces the amount of harness slack compared with a standard safety seat. The secondary objective of the study is to assess caregivers' perceptions of the quality, design, and ease of use of the prototype child safety seat tensioning progress indicator lights. Participants will be parents/caregivers aged 18 to 75 years of children between 6 and 24 months of age. Approximately 130 caregiver-child dyads will be enrolled. Participants will be asked to harness their child into two versions of a convertible child safety seat, twice in each car seat. The intervention seat will be equipped with the technology that gives visual indication of successful harness tensioning. Participants will be observed, assessed, and asked a series of survey questions after each harnessing period.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- None
盲法说明
The order of the harnessing periods will be randomly allocated at the start of the study visit and counterbalanced across participants. Participants will be aware that the order of the harnessing periods is randomly assigned. Assignment status will not be concealed from the research assistants enrolling the dyads or the participants, or the rest of the study team.
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adults aged 18-75 years who are the parent/legal guardian of a child aged 6 months-24 months
- •Parent/legal guardian has harnessed a child into a safety seat in the last 30 days
排除标准
- •Non-fluency in written and/or spoken English
- •Parent/legal guardian cannot install, and/or child cannot be harnessed into, a safety seat due to a physical or health limitation
结局指标
主要结局
Change in harness tension
时间窗: Up to 5 minutes
After each of the four harnessing periods, the tension force on the safety seat harness will be measured with a load cell in Newtons and/or a qualitative "pinch" test which provides a binary value of tight vs not-tight. Within-participant harness tension is compared.
次要结局
- Participant perceptions of usability of the tension progress indicator light technology: survey(30 minutes)