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

描述（由申请人提供）：从青春期到青年期的过渡是以健康行为的下降为标志的，如饮食，体育活动和肥胖的增加，从而在成年中期建立不健康行为的早期模式，这可能导致以后生活中慢性疾病的增加。在大学环境中的健康促进干预措施可能会对这些模式产生影响。然而，由于美国本科大学人口主要由非传统学生组成（3/4），健康促进计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）。这些特点增加了大学生的社会背景，一个理论上的多层次的概念，强调社会和组织的影响，对健康行为的实践的影响。因此，本研究的目的是评估实施干预的可行性，将学生的社会背景，以促进健康饮食和体育活动行为的非传统大学生。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）基于网络的提示表，针对大学环境的社会背景，以及3）四个基于电话的辅导电话，使用动机访谈。辅导电话将由训练有素的学生同侪辅导员提供，这是一种潜在的可持续提供机制。第二，干预的可行性将使用一组，前/后设计的样本中的100名学生就读于一个大型的4年制公立大学服务于大量的非传统的学生。这个设计将使我们能够调查干预方法的可行性，学生同侪辅导员和学生参与者的会议基准的基础上，以前的研究。这四项基准是：1）培训足够数量的学生同伴辅导员，2）让参与者接受足够剂量的辅导电话，3）让参与者接受足够剂量的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期间充分遵守激励性访谈的关键原则。是否达到每一个基准将通过一个具体的进程指标来衡量。第三，我们将评估学生参与者从基线到五个月随访的行为变化（水果和蔬菜摄入量，中度到剧烈的体力活动）。因此，本申请旨在：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，以及3）获得进行未来干预试验所需的有效尺寸估计。

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.