Centers for Disease Control and Prevention, Division of Adolescent and School Health, Atlanta, GA 30341, USA.
J Sch Health. 2011 Aug;81(8):502-11. doi: 10.1111/j.1746-1561.2011.00620.x.
A US federal mandate that school districts devise and implement local wellness policies (LWPs) has potential widespread impact on the nutritional content of foods and beverages available in schools and on the amount of physical activity that students engage in; however, evidence concerning the mandate's effectiveness is limited. This study describes the content of LWPs of 6 US school districts and steps taken toward their implementation and evaluation.
During visits to 6 school districts, we interviewed 88 school and community representatives about the content of their district's LWPs and how the LWPs were being implemented and evaluated.
The 6 LWPs were consistent with the federal mandate, although they varied in content and degree of specificity, and none had been fully implemented. All 6 districts were pursuing strategies to ensure that foods and beverages available at school met nutrition standards but did not offer nutrition education to all K-12 students. All 6 districts offered students only limited opportunities for physical activity, and all 6 collected data to monitor process and outcomes of their LWPs.
Partial implementation of LWPs in the districts we visited resulted in significant improvement in the nutritional quality of foods available at district schools, but only slight improvement in students' opportunities for school-based physical activity. We provide recommendations for school districts on implementation and evaluation. Future research is needed to determine the impact of these LWPs on students' health.
美国联邦政府要求学区制定并实施地方健康政策(LWPs),这可能会对学校供应的食品和饮料的营养成分以及学生参与的体育活动量产生广泛影响;然而,有关该规定有效性的证据有限。本研究描述了美国 6 个学区的 LWP 内容,以及为实施和评估 LWP 而采取的步骤。
在对 6 个学区进行访问期间,我们采访了 88 名学校和社区代表,了解他们所在学区的 LWP 内容,以及 LWP 的实施和评估情况。
这 6 个 LWP 符合联邦政府的规定,尽管它们在内容和具体程度上有所不同,而且没有一个完全实施。所有 6 个地区都在采取措施确保学校供应的食品和饮料符合营养标准,但没有向所有 K-12 学生提供营养教育。所有 6 个地区都为学生提供了有限的体育活动机会,并且所有 6 个地区都收集数据来监测 LWP 的过程和结果。
我们访问的学区部分实施 LWP 后,学校供应的食品营养质量有了显著改善,但学生在校进行体育活动的机会仅略有改善。我们为学区提供了实施和评估方面的建议。未来需要研究这些 LWP 对学生健康的影响。