Efficacy of Exercise Videogames for Physical Activity Adoption and Maintenance

描述(由申请人提供)： 经常参加体育锻炼(PA)可以降低心血管疾病、糖尿病、肥胖症和某些癌症的风险。[1-3]尽管PA有很多好处，但只有少数美国成年人经常参加PA，[4，5]而且大多数开始锻炼的人不会继续锻炼。[6-8]事实上，缺乏体育锻炼已被称为21世纪美国公共健康面临的最大威胁。[16]我们非常需要开发创新的方法来促进增加PA，并以一种有助于持续练习的方式参与进来。需要体力活动才能玩的电子游戏(也称为“运动视频游戏”或“EVGs”)已经被广泛地销售给数百万美国家庭，儿童和成人都玩。[9]新的研究表明，单次玩这些游戏可以显著增加新陈代谢支出，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。[12，13]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与EVG活动，以改善心血管健康状况和总体健康风险。此外，EVGs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，鼓励更多的PA参与和维护。[60-61]拟议的试验建立在我们非常成功的先导研究的基础上，在接受12周EVGs计划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。在拟议的研究中，我们将在健康、久坐的成年人(年龄和年龄=18岁)中进行一项3组随机对照试验，以测试EVGs与标准运动计划(Standard)和接触控制(Control)相比增加PA时间以及身体健康和心血管健康变化的有效性。我们还将在为期6个月的基于家庭的EVG和标准干预(4-9个月)期间检查PA的维护和健康变化。这项研究还将考察基于理论的概念的变化，这些变化将揭示在遵守PA方面观察到的组间差异背后的认知和行为机制。拟议中的研究将通过以下方面推进该领域：(1)确定EVGs增加PA参与度的有效性；(2)展示EVGs在家庭使用时维持PA的有效性；(3)展示EVGs改善心血管健康和整体健身的潜力；以及(4)测试可能有助于EVGs更好地坚持并最终与标准形式的PA相比的有效性的理论构造。

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.