Barriers of Physical Activity Adoption and Maintenance

60%的美国人没有规律的体育锻炼。鉴于体育活动对健康的重要性（美国卫生与健康服务部，1996年），有必要制定有效的体育活动干预措施，并消除妨碍参加体育活动的障碍。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。本研究通过对美国国立卫生研究院资助的一项研究（即STRIDE项目）的参与者进行问卷调查，考察了体育活动行为的障碍，该研究比较了以下三组的效果：1)基于电话的动机量身定制的个性化反馈；2)基于印刷品的个性化反馈；3)健康/健康对照组（12个月后接受全面干预）。32名完成STRIDE项目的参与者将参加解决身体活动障碍的焦点小组。根据从调查问卷和焦点小组获得的信息，将编制一份调查各类身体活动障碍的调查问卷。障碍问卷的信度和效度将通过对100名未参与STRIDE项目的个人进行问卷调查来检验。最近的研究表明，量身定制的干预措施对增加身体活动是有效的；然而，需要一份简短的调查问卷，使研究人员和临床医生能够根据自我报告的障碍进行个性化干预。目前的研究将使未来的研究能够测试针对身体活动障碍的干预措施的效果。

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.