Feasibility of a Healthy Eating and Physical Activity Program Among a Diverse Sam

描述(申请人提供)：从青春期到青春期的转变标志着健康行为的下降，如饮食、体育活动和肥胖的增加，从而建立了中年不健康行为的早期模式，这可能会导致以后生活中慢性病的增加。大学环境中的健康促进干预可能会对这些模式产生影响。然而，由于美国本科生人口主要由非传统学生组成(3/4)，健康促进规划应纳入与这一人群密切相关的特征(例如，兼职入学、全职工作和通勤到校园)。这些特点增加了大学生的社会背景，这是一个理论上的多层次概念，强调社会和组织影响对健康行为实践的影响。因此，本研究的目的是评估在非传统大学生中实施结合学生社会背景的健康饮食和体育活动行为干预的可行性。首先，将对研究小组现有的干预材料进行调整，以创建拟议干预的三个主要组成部分：1)基于网络的定制反馈，2)针对大学环境的社会背景的基于网络的提示表，以及3)使用激励性访谈的四个基于电话的指导电话。辅导电话将由训练有素的学生同伴辅导员提供，这是一种潜在的可持续交付机制。其次，干预的可行性将通过一组前/后设计进行评估，抽样对象为一所服务于大量非传统学生的大型四年制公立大学的100名学生。这一设计将使我们能够在学生同伴辅导员和学生参与者中通过达到基于先前研究的基准来调查干预方法的可行性。这四个基准是：1)培训足够数量的学生同伴辅导员，2)让参与者收到足够剂量的辅导电话，3)让参与者收到足够剂量的量身定制和有针对性的材料，以及4)让学生同伴辅导员在辅导电话中充分遵守激励性访谈的关键原则。达到每个基准的标准将由特定的流程指标来衡量。第三，我们将评估学生参与者从基线到五个月随访期间的行为变化(水果和蔬菜的摄入量，中等到剧烈的体力活动)。因此，本申请寻求：1)创建一系列干预材料，2)对我们的干预方法进行可行性评估，3)获得进行未来干预试验所需的有效规模估计。

DESCRIPTION (provided by applicant): The transition from adolescence to young adulthood is marked by declines in healthful behaviors such as diet, physical activity, and increases in obesity, thereby establishing early patterns of unhealthful behaviors in mid-adulthood that can lead to increases in chronic diseases later in life. Health promotion interventions in the college setting may have an impact on these patterns. However, because the U.S. undergraduate college population consists largely (3/4) of nontraditional students, health promotion programming should incorporate the characteristics that are germane to this population (for example, part-time enrollment, working full-time, and commuting to campus). These characteristics add to college students' social context, a theoretical multi-level concept that stresses the influence of social and organizational influences on the practice of health behaviors. Therefore, the purpose of this study is to evaluate the feasibility of implementing an intervention incorporating students' social context to promote healthy eating and physical activity behaviors among nontraditional college students. First, adaptations to existing intervention materials available to the study team will be carried out in order to create the three main components for the proposed intervention: 1) web-based tailored feedback, 2) web-based tip sheets targeted to the social context of the college setting, and 3) four phone-based coaching calls using motivational interviewing. The coaching calls will be delivered by trained student peer counselors, a potentially sustainable delivery mechanism. Second, the feasibility of the intervention will be assessed using a one-group, pre/post design among a sample of 100 students enrolled at a large 4-year public university serving a large population of nontraditional students. This design will allow us to investigate feasibility of the intervention approach among student peer counselors and student participants by meeting benchmarks based on previous studies. The four benchmarks are: 1) training a sufficient number of student peer counselors, 2) having participants receive a sufficient dose of coaching calls, 3) having participants receive a sufficient dose of tailored and targeted materials, and 4) having student peer counselors adhere sufficiently to key principles of motivational interviewing during the coaching calls. Meeting each benchmark will be measured by a specific process indicator. Third, we will assess change in behaviors (fruit and vegetable intake, moderate-to-vigorous physical activity) among student participants from baseline to five-month follow-up. Thus, this application seeks to: 1) create a series of intervention materials, 2) conduct a feasibility assessment of our intervention approach, and 3) obtain an effective size estimation necessary in order to conduct a future intervention trial.