Barriers of Physical Activity Adoption and Maintenance

60%的美国人不参加定期的体育活动。鉴于体育活动对健康的重要性（USDHHS，1996年），有必要制定有效的体育活动干预措施，并解决妨碍参与体育活动的障碍。本研究将探讨身体活动的障碍如何影响印刷品和电话干预对身体活动的采用和维持的影响。本研究通过向NIH资助的研究（即，STRIDE项目），其比较了以下三组的功效：1）基于电话的动机定制的个性化反馈; 2）基于打印的动机定制的个性化反馈;以及3）健康/保健对照组（12个月后接受全面干预作为对照）。完成STRIDE项目的32名参与者将参加解决身体活动障碍的焦点小组。根据从问卷调查和焦点小组获得的信息，将编制一份调查问卷，审查各种类型的身体活动障碍。将通过向100名未参加STRIDE项目的个人发放问卷来检查障碍问卷的可靠性和有效性。最近的研究表明，个性化的干预措施是有效的增加体力活动，但是，有必要一个简短的问卷调查，使研究人员和临床医生个性化的干预措施的基础上自我报告的障碍。本研究将使未来的研究，以测试针对身体活动障碍的干预措施的有效性。

Sixty percent of Americans do not engage in regular physical activity. Given the importance of physical activity on health (USDHHS, 1996), there is a need to develop effective physical activity interventions and to address barriers that interfere with participation in physical activity. The present study will examine how barriers to physical activity influence the effects of print and telephone interventions on the adoption and maintenance of physical activity. The present study examines barriers to physical activity behavior by administering questionnaires to participants in a NIH-funded study (i.e., Project STRIDE), which compares the efficacy of the following three groups: 1) telephone-based motivationally-tailored individualized feedback; 2) print-based motivationally-tailored individualized feedback; and 3) health/wellness control group (receive full intervention after 12 months as controls). Thirty-two participants completing Project STRIDE will participate in focus groups addressing physical activity barriers. Based on the information obtained from the questionnaires and focus groups, a questionnaire that examines various types of physical activity barriers will be developed. The reliability and validity of the barriers questionnaire will be examined by administering the questionnaire to 100 individuals not participating in project STRIDE. Recent studies indicate that individually tailored interventions are effective for increasing physical activity; however, there is a need for a brief questionnaire that would allow researchers and clinicians to individualize interventions based on self-reported barriers. The present study would enable future studies to test the efficacy of interventions tailored to physical activity barriers.