Gatto Nicole M, Martinez Lauren C, Spruijt-Metz Donna, Davis Jaimie N
Center for Nutrition, Healthy Lifestyles & Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, California, USA.
Department of Preventive Medicine, University of Southern California, Los Angeles, California, USA.
Obesity (Silver Spring). 2015 Jun;23(6):1244-51. doi: 10.1002/oby.21077. Epub 2015 May 9.
To assess the effects of a 12-week gardening, nutrition, and cooking intervention ("LA Sprouts") on dietary intake, obesity parameters, and metabolic disease risk among low-income, primarily Hispanic/Latino youth in Los Angeles.
The randomized controlled trial involved four elementary schools [two schools randomized to intervention (172 third-through fifth-grade students); two schools randomized to control (147 third-through fifth-grade students)]. Classes were taught in 90-minute sessions once a week to each grade level for 12 weeks. Data collected at pre- and postintervention included dietary intake via food frequency questionnaire (FFQ), anthropometric measures [BMI, waist circumference (WC)], body fat, and fasting blood samples.
LA Sprouts participants had significantly greater reductions in BMI z-scores (0.1-vs. 0.04-point decrease, respectively; P = 0.01) and WC (-1.2 cm vs. no change; P < 0.001). Fewer LA Sprouts participants had the metabolic syndrome (MetSyn) after the intervention than before, while the number of controls with MetSyn increased. LA Sprouts participants had improvements in dietary fiber intake (+3.5% vs. -15.5%; P = 0.04) and less decreases in vegetable intake (-3.6% vs. -26.4%; P = 0.04). Change in fruit intake before and after the intervention did not significantly differ between LA Sprouts and control subjects.
LA Sprouts was effective in reducing obesity and metabolic risk.
评估一项为期12周的园艺、营养和烹饪干预措施（“洛杉矶新芽计划”）对洛杉矶低收入、主要为西班牙裔/拉丁裔青少年的饮食摄入量、肥胖参数和代谢疾病风险的影响。
这项随机对照试验涉及四所小学[两所学校随机分配至干预组（172名三至五年级学生）；两所学校随机分配至对照组（147名三至五年级学生）]。每周为每个年级进行一次90分钟的课程教学，共持续12周。干预前后收集的数据包括通过食物频率问卷（FFQ）得出的饮食摄入量、人体测量指标[体重指数（BMI）、腰围（WC）]、体脂和空腹血样。
“洛杉矶新芽计划”参与者的BMI z评分显著降低（分别下降0.1分和0.04分；P = 0.01），腰围也显著降低（减少1.2厘米，而对照组无变化；P < 0.001）。干预后，“洛杉矶新芽计划”参与者患代谢综合征（MetSyn）的人数比干预前减少，而对照组患MetSyn的人数增加。“洛杉矶新芽计划”参与者的膳食纤维摄入量有所改善（增加3.5%，而对照组减少15.5%；P = 0.04），蔬菜摄入量的减少幅度也较小（减少3.6%，而对照组减少26.4%；P = 0.04）。干预前后水果摄入量的变化在“洛杉矶新芽计划”参与者和对照组之间没有显著差异。
“洛杉矶新芽计划”在降低肥胖和代谢风险方面有效。
