Patterns of Physical Activity in Reduced-Obese Subjects

描述(由申请人提供)：这项为期两年的拟议项目旨在了解肥胖减少的人群与未减少肥胖的对照人群的体力活动模式。只有少数实现了实质性减肥的人能够成功地长期保持减肥。了解有助于预防体重恢复的因素有助于制定战略，使更多的人能够成功地保持减肥。该项目将利用国家体重控制登记处的参与者，使用加速计和体力活动问卷来确定与匹配的对照组相比，成功减少肥胖人口的体力活动的数量、类型、频率、强度和持续时间。这项建议的一个主要假设是，成功减少肥胖的人维持更高水平的体力活动，正是这种高水平的活动是保持体重的一个主要因素。此外，我们假设，成功减少肥胖的受试者保持高度的自我监控，并更有可能准确地报告他们的体力活动。此前没有研究评估过肥胖程度减轻的受试者的体力活动模式。

DESCRIPTION (provided by applicant): The 2 year proposed project is aimed at understanding the patterns of physical activity in a reduced obese population as compared to non -reduced controls. Only a minority of individuals who achieve substantial weight loss are able to succeed at long term weight loss maintenance. Understanding the factors that contribute to prevention of weight regain could aid in the development of strategies to enable more individuals to succeed at weight loss maintenance. Using participants from the National Weight Control Registry, the project will use accelerometers and physical activity questionnaires to determine the amount, type, frequency, intensity and duration of physical activity in a successfully reduced obese population as compared to matched controls. A major hypothesis of this proposal is that the successfully reduced obese sustain a higher level of physical activity, and it is this high level of activity that is a major factor in weight maintenance. In addition, we hypothesize that successfully reduced obese subjects maintain a high degree of self monitoring and will be more likely to accurately report their physical activity. No previous studies have assessed patterns of physical activity in reduced obese subjects.