Efficacy of Exercise Videogames for Physical Activity Adoption and Maintenance

描述（由申请人提供）： 参加有规律的体育活动（PA）可以降低患心血管疾病、糖尿病、肥胖和某些癌症的风险。[1-3]尽管PA有许多好处，但只有少数美国成年人定期进行PA，[4，5]而大多数开始锻炼计划的人不会继续下去。[6-8]事实上，缺乏身体活动被称为21世纪美国公众健康的最大威胁。[16]非常需要制定创新的方法，以促进以有助于维持持续实践的方式增加PA。需要体力活动的视频游戏（也称为“锻炼视频游戏”或“EVG”）已被广泛销售给数百万美国家庭，并由儿童和成人玩。[9]新兴的研究表明，这些游戏的单一会话可以产生代谢消耗的显着增加，并将心率提高到相当于中等到剧烈的体力活动的水平[10，11]，这可能转化为与健康相关的健身改善。[12然而，到目前为止，还没有足够的研究来确定成年人是否会定期参加EVG，以改善心血管健康和整体健康风险。此外，EVG还可以比标准PA计划更大程度地利用某些认知和情感结构，鼓励更多地参与和维护PA。[60 - 61] 这项拟议的试验建立在我们非常成功的试点研究的基础上，在这项研究中，接受12周EVG治疗的成年人显示出健康和心血管健康指标（包括台阶测试持续时间、平衡、静息心率、血压等）的改善。对于拟议的研究，我们将在健康、久坐的成年人（年龄≥ 18岁）中进行一项3组随机对照试验，以测试EVG与标准运动计划（标准）和接触控制（对照）相比在增加PA花费的时间以及身体健康和心血管健康变化方面的疗效。我们还将在6个月的家庭EVG和标准干预（第4 - 9个月）期间检查PA的维持和健身变化。本研究还将研究基于理论的结构的变化，这些结构将揭示观察到的PA依从性组间差异的认知和行为机制。拟议的研究将通过以下方式推进该领域：（1）确定EVG在增加PA参与率方面的疗效;（2）证明EVG在家庭使用时用于PA维持的疗效;（3）证明EVG改善心血管健康和整体健康的潜力;和（4）测试可能有助于更大的依从性的理论结构，并且最终，与PA的标准形式相比，EVG的功效。

DESCRIPTION (provided by applicant): Participation in regular physical activity (PA) reduces the risk of cardiovascular disease, diabetes, obesity, and certain forms of cancer.[1-3] Despite the numerous benefits of PA, only a minority of American adults engage in regular PA,[4,5] and most who begin an exercise program do not continue.[6-8] Indeed, Physical inactivity has been called the most significant threat to American public health for the 21st century.[16] There is a great need to develop innovative approaches to promoting increased PA that are engaging in a way that helps sustain continued practice. Videogames that require physical activity for play (also called "Exercise Videogames" or "EVGs") have been widely marketed to millions of U.S. households and are played by both children and adults.[9] Emerging research indicates that a single session of these games can produce significant increases in metabolic expenditure and increase heart rate to levels equaling moderate-to-vigorous physical activity[10,11] that may translate into health-related fitness improvements.[12,13] However, to date there is insufficient research to determine whether adults will engage in regular EVG participation sufficient to produce improvements in cardiovascular fitness and overall health risk. In addition, EVGs may also tap into certain cognitive and affective constructs to a greater degree than standard PA programs, encouraging greater participation and maintenance of PA.[60-61] The proposed trial builds on our highly successful pilot study, in which adults given a 12-week program of EVGs showed improvements in fitness and measures of cardiovascular fitness (including step test duration, balance, resting heart rate, blood pressure, etc.). For the proposed study we will conduct a 3-group randomized, controlled trial among healthy, sedentary adults (age > or =18), to test the efficacy of EVGs compared to a standard exercise program (Standard) and contact-control (Control) to increase time spent in PA and changes in physical fitness and cardiovascular health. We will also examine maintenance of PA and fitness changes during a 6-month home based EVG and Standard interventions (Months 4-9). This study will also examine changes in theoretically-based constructs that will shed light on the cognitive and behavioral mechanisms underlying observed between-group differences in adherence to PA. The proposed study will advance the field by: (1) establishing the efficacy of EVGs for increasing participation in PA; (2) demonstrating the efficacy of EVGs for PA maintenance when used in the home; (3) Demonstrating the potential of EVGs for improving cardiovascular health and overall fitness; and (4) testing theoretical constructs that may contribute to greater adherence, and ultimately, efficacy of EVGs compared to standard forms of PA.