Martinez Lauren C, Gatto Nicole M, Spruijt-Metz Donna, Davis Jaimie N
Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N Soto St, 3rd floor, Los Angeles, CA 90089, United States.
Center for Nutrition, Healthy Lifestyles, & Disease Prevention, Loma Linda University, 24951 North Circle Drive, Nichol Hall 2025, Loma Linda, CA 92350, United States.
Contemp Clin Trials. 2015 May;42:219-27. doi: 10.1016/j.cct.2015.04.008. Epub 2015 Apr 18.
The LA Sprouts 12-week nutrition, cooking and gardening intervention targets obesity reduction in Latino children. While other gardening and nutrition programs are shown to improve dietary intake, LA Sprouts is unique in that it utilized a curriculum demonstrated to decrease obesity. This methodology paper outlines the design and processes of the LA Sprouts study, and discusses key strategies employed to foster successful implementation of the program.
After-school program in four Los Angeles elementary schools.
3rd-5th grade students.
Randomized controlled trial. Gardens were built on two of four school campuses, and the 90-minute weekly lessons focused on strategies to increase fruit and vegetable consumption, gardening at school and home, and cooking healthy meals/snacks. Data collection was conducted pre- and post-intervention and included basic clinical and anthropometric measures, dietary intake and psychosocial constructs measured by questionnaire, and an optional fasting blood draw.
Baseline data was collected from 364 children, and 320 (88%) completed follow-up. No participants withdrew from the program (data were missing for other reasons). Intervention students attended 9.7 ± 2.3 lessons. Fasting blood samples were collected on 169 children at baseline, and 113 (67%) at follow-up. Questionnaire scales had good internal consistency (IC) and intra-rater reliability (IRR; in child scales: 88% items with IC > 0.7 and 70% items with IRR > 0.50; in parent scales: 75% items with IC > 0.7).
The intervention was successfully implemented in the schools and scales appear appropriate to evaluate psychosocial constructs relevant to a gardening intervention.
“洛杉矶新芽”为期12周的营养、烹饪和园艺干预旨在降低拉丁裔儿童的肥胖率。虽然其他园艺和营养项目已被证明能改善饮食摄入，但“洛杉矶新芽”的独特之处在于它采用了一种已被证明能降低肥胖率的课程。本方法学论文概述了“洛杉矶新芽”研究的设计和过程，并讨论了为促进该项目成功实施所采用的关键策略。
洛杉矶四所小学的课后项目。
三至五年级学生。
随机对照试验。在四所学校校园中的两所建造了花园，每周90分钟的课程重点是增加水果和蔬菜消费、在学校和家中进行园艺以及烹饪健康餐食/零食的策略。在干预前后进行数据收集，包括基本临床和人体测量指标、通过问卷调查测量的饮食摄入和心理社会指标，以及一项可选的空腹抽血。
从364名儿童收集了基线数据，320名（88%）完成了随访。没有参与者退出该项目（数据因其他原因缺失）。干预组学生参加了9.7±2.3节课程。169名儿童在基线时采集了空腹血样，113名（67%）在随访时采集了血样。问卷量表具有良好的内部一致性（IC）和评分者内信度（IRR；儿童量表中：88%的项目IC>0.7，70%的项目IRR>0.50；家长量表中：75%的项目IC>0.7）。
该干预在学校成功实施，量表似乎适合评估与园艺干预相关的心理社会指标。
