DIET AND ACTIVITY IN MEXICAN AMERICAN AND ANGLO CHILDREN

众所周知，心血管疾病(CVD)的根源是 在儿童时期表现明显，血脂、血压水平升高 和体脂在儿童时期是很常见的。这些风险因素反过来又是， 与儿童的饮食和体力活动习惯有关。理解 CVD的早期发展，因此研究其影响因素具有重要意义 会影响儿童的饮食和体育活动行为。多数 与饮食和体力活动的决定因素有关的研究 儿童是横断续续的，限制了他们提高能力的效用 了解这些关键健康行为的发展。这个 拟议的研究将允许对一年内的行为进行前瞻性分析 青春期前年龄范围的很大一部分。了解以下内容 儿童饮食和饮食的决定因素、稳定性和关系 体力活动对生理危险变量的行为可以被用来 设定优先事项和设计公共卫生干预措施 下一代青年。 修订后的扫描项目将允许对体力活动进行后续研究 10~11岁英国儿童的饮食行为及其决定因素 以及来自中低社会经济地位的墨西哥裔美国儿童 (SES)最初在4至7岁时接受研究的家庭 年长的。要研究的可能决定因素的选择是基于社会 学习/认知理论，该理论认为行为是 个人和环境因素。这项研究的具体目的是 详情如下： 1)研究体力活动和膳食摄入量的决定因素 脂肪、钠和卡路里，以及儿童这些行为的变化 从4岁到10-11岁。 2)确定饮食和体力活动之间的关系 实践和风险的生理指标，如血压， 4至10-11岁的肥胖、体重和血清脂蛋白。 3)描述物理的时间趋势和跟踪程度 儿童的运动习惯和脂肪、钠和卡路里的营养摄入量 从4岁到10-11岁的儿童。 圣地亚哥扫描研究的主要贡献将是 青岛市居民膳食行为和体力活动行为的纵向分析 孩子们。对我们现在10到11岁的队列的随访评估 他们的母亲会提供数据，这些数据将大大改善 了解儿童饮食和营养状况的决定因素和跟踪 体力活动行为及其与心血管疾病风险的关系 各种因素。

It is well documented that the roots of cardiovascular diseases (CVD) ar evident in childhood, and elevated levels of serum lipids, blood pressur and body fat are common in childhood. These risk factors are, in turn, related to childhood dietary and physical activity habits. To understan the early development of CVD, it is therefore important to study factors that influence diet and physical activity behaviors in children. Most studies concerned with the determinants of diet and physical activity in children are cross-sectional, limiting their utility for improving understanding of the development of these key health behaviors. The proposed study will allow prospective analyses of the behaviors over a significant portion of the prepubertal age range. Knowledge of the determinants, stability, and relationships of childhood dietary and physical activity behaviors to physiologic risk variables could be usefu for setting priorities and designing public health interventions for the next generations of youth. The revised SCAN project will allow follow-up study of physical activity and dietary behaviors and their determinants in 10- to 11-year-old Anglo and Mexican-American children from low- and middle-socioeconomic status (SES) families who were studied initially when they were 4 to 7 years old. Selection of possible determinants to be studied is based on socia learning/cognitive theory, which states that behaviors are a function of personal and environmental factors. The specific aims of the study are as follows: 1) To study the determinants of physical activity and dietary intake of fat, sodium, and calories, and changes in these behaviors in children from ages 4 to 10-11. 2) To determine the relationships between diet and physical activity practices and physiologic indicators of risk, such as blood pressure, adiposity, body mass, and serum lipoproteins at ages 4 to 10-11. 3) To describe the time trends and the degree of tracking of physical activity habits and nutritional intake of fat, sodium, and calories in children from ages 4 to 10-11. The major contribution of this San Diego SCAN study will be the longitudinal analysis of dietary and physical activity behaviors in children. The follow-up assessment of our now 10-to 11-year-old cohort and their mothers will produce data that will substantially improve understanding of the determinants and tracking of children's dietary and physical activity behaviors, as well as their relations to CVD risk factors.