Challenge! in Baltimore City Middle Schools
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 789
- 试验地点
- 2
- 主要终点
- Change of Body Mass Index Percentile for Age and Sex for adolescent females
研究概览
简要总结
The prevalence of overweight among adolescents (BMI-for-age %tile over the 95th percentile) has more than tripled over the past 3 decades in the US. Overweight and physical inactivity disproportionately affect low- income, female, African American adolescents.
A prior health-promotion/ obesity-prevention program for adolescents developed and tested by our group (Challenge!) showed that adolescents who received the intervention were less likely to become overweight or obese over 2 years when compared to the control group. This intervention was administered one-on-one to adolescents in their homes or community by a college-aged mentor.
Schools are an ideal setting for interventions because the effect can be far-reaching and sustainable. School-based obesity-prevention interventions have thus far shown modest results.
The purpose of this study is to evaluate the impact of a multilevel intervention that includes both the Challenge program administered in a small group format after school using mentors and teachers and a school-wide environmental change on adolescent females' body composition, diet, and physical activity. The intervention is targeted to 6th and 7th grade female students. The small group intervention is conducted over 12 weeks and includes goal setting focusing on healthy diet and physical activity, along with membership and weekly trips to the YMCA. The environmental intervention includes a Health and Activity Committee (HAC), comprised of 8th grade female students (popular opinion leaders), school personnel, parents, and community members. The HAC develops school-wide health promotion messages and activities. Parents of participating 6th and 7th grade girls provide information on family variables. The hypotheses are that females who receive the small group or environmental intervention are at less risk of weight gain (overweight) than females in the control small group condition, that females in environmental schools are at less risk of weight gain (overweight) than females in the control environmental condition, and that females who receive both the small group and environmental intervention are at the lower risk of weight gain (overweight) than females who receive only the environmental or small group intervention or neither intervention.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 10 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •For small group intervention:
- •Female Adolescent
- •Grades 6 or 7
- •No health problems that would interfere with participation in physical education classes
- •For environmental intervention Health and Activity Committee:
- •Must be one of the following:
- •8th grade female student
- •Parent or legal guardian of any student in the school
- •School personnel
- •Adult Community member (Self-identifies as member of specified community surrounding school)
排除标准
- •For small group intervention:
- •Outside of the grade range 6-7 at recruitment
- •Participant will be excluded if they answer no to question 1 on the screening questionnaire (unable to read and understand questions written in English)
- •Participant will be excluded if they answer yes to questions 2 or 3 on screening form (fails health screening due to medical condition preventing them from engaging in physical activity)
- •For environmental intervention Health and Activity Committee:
- •Inability to speak or read English
- •Inability to attend meetings
研究组 & 干预措施
Challenge! Small Group Intervention only
This group receives the Challenge! Small Group intervention consisting of curriculum related to health behavior goal setting, healthy eating, and staying active, works out with their Health Educators, and receives a year-long membership to the YMCA.
This group is in schools that were randomly assigned to NOT receive the Environmental Intervention.
干预措施: Challenge! Small Group Intervention (Behavioral)
Challenge! Small Group and Environmental Intervention
This group consists of participants who receive the Challenge! Small Group Intervention AND attend a school that is randomly assigned to receive an environmental intervention.
This group receives the Challenge! Small Group intervention consisting of curriculum related to health behavior goal setting, healthy eating, and staying active, works out with their Health Educators, and receives a year-long membership to the YMCA.
The environmental intervention involves the formation of a Health and Activity Committee composed of community members, teachers, parents, school staff, and 8th grade girls from the school. Together, this group comes up with ways to make their school environment healthier.
干预措施: Challenge! Small Group Intervention (Behavioral)
Challenge! Small Group and Environmental Intervention
This group consists of participants who receive the Challenge! Small Group Intervention AND attend a school that is randomly assigned to receive an environmental intervention.
This group receives the Challenge! Small Group intervention consisting of curriculum related to health behavior goal setting, healthy eating, and staying active, works out with their Health Educators, and receives a year-long membership to the YMCA.
The environmental intervention involves the formation of a Health and Activity Committee composed of community members, teachers, parents, school staff, and 8th grade girls from the school. Together, this group comes up with ways to make their school environment healthier.
干预措施: Challenge! Environmental Intervention (Other)
Environmental Intervention Only
This group consists of participants who do not receive the Challenge! Small Group Intervention but attend a school that is randomly assigned to receive an environmental intervention.
This group does not receive the Challenge! Small Group Intervention.
The environmental intervention involves the formation of a Health and Activity Committee composed of community members, teachers, parents, school staff, and 8th grade girls from the school. Together, this group comes up with ways to make their school environment healthier.
干预措施: Challenge! Environmental Intervention (Other)
Control Group
This group does not receive the Challenge! Small Group intervention and is in a school that is randomly assigned to NOT have the Environmental Intervention.
结局指标
主要结局
Change of Body Mass Index Percentile for Age and Sex for adolescent females
时间窗: Baseline to 6 month (Post Intervention) Follow-up or 1 year (Delayed Intervention) Follow-up
次要结局
- Change of Dietary Quality for adolescent females(Baseline to 6 month (Post Intervention) Follow-up or 1 year (Delayed Intervention) Follow-up)
研究者
Maureen Black
Professor
University of Maryland, Baltimore