Challenge! Adolescent Obesity Prevention (Challenge)
Challenge! in Baltimore City Middle Schools
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.
調査の概要
状態
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Maryland
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Baltimore、Maryland、アメリカ、21201
- Baltimore City Public Schools
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-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
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)
Exclusion Criteria:
For small group intervention:
- Male
- 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
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：防止
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：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. |
The Challenge!
Small Group intervention consists of curriculum related to health behavior goal setting, healthy eating, and staying active, working out with Health Educators, and receiving a year-long membership to the YMCA.
|
|
実験的：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. |
The Challenge!
Small Group intervention consists of curriculum related to health behavior goal setting, healthy eating, and staying active, working out with Health Educators, and receiving 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.
|
|
実験的：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. |
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.
|
|
介入なし：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.
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Change of Body Mass Index Percentile for Age and Sex for adolescent females
時間枠：Baseline to 6 month (Post Intervention) Follow-up or 1 year (Delayed Intervention) Follow-up
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Baseline to 6 month (Post Intervention) Follow-up or 1 year (Delayed Intervention) Follow-up
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change of Dietary Quality for adolescent females
時間枠：Baseline to 6 month (Post Intervention) Follow-up or 1 year (Delayed Intervention) Follow-up
|
Dietary quality will be assessed via the use of a Food Frequency Questionnaire.
|
Baseline to 6 month (Post Intervention) Follow-up or 1 year (Delayed Intervention) Follow-up
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協力者と研究者
協力者
捜査官
- 主任研究者：Maureen M Black, PhD、University of Maryland School of Medicine, Department of Pediatrics, Growth & Nutrition Division
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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