DIET/ACTIVITY OF MEXICAN AMERICAN AND ANGLO CHILDREN

很少有墨西哥裔美国人的纵向研究人群 英美儿童和他们的父母， 研究心血管、行为和生理危险因素， 从学龄前到青春期早期 大多数研究 儿童饮食和体力活动的决定因素是 横截面。 当前研究人群在队列中仍然稳健 保留率（7年后接近68%）将通过 未来三年的青春期。 这提供了一个独特的机会， 扩展和联合收割机已经收集的4-7岁之间的丰富数据， 再从10-11岁到[14-16]岁。 本研究 将继续加强先前对风险因素、健康 行为和行为决定因素，但增加了与行为相关的 吸烟行为的测量，与抑郁相关的感觉，以及 同伴影响;父母影响的变化也被评估。 这 研究期间还将集中在文化适应的影响， 墨西哥裔美国人的健康行为。 这 纵向研究将为研究者提供重要数据， 实验操作因素的科学依据 针对特定性别、种族和年龄的青少年的干预试验 特色 研究的具体目标是前瞻性的， 跨部门的，并为许多这些目标，性别和种族可以 被评定为社团调解人。 在这项对来自两个民族的年轻人和他们的母亲的研究中， 前瞻性分析的目的是：1.研究的决定因素 体力活动和总脂肪，饱和脂肪， 钠和能量，以及4岁儿童这些行为的变化， [14-16奥尔兹] 2. 确定饮食与 身体活动实践和生理指标的风险，如 血压、肥胖、体重指数和血清脂蛋白， 年龄4至[14-16]岁。 3. 描述物理跟踪的程度 活动习惯和饮食摄入的脂肪，钠，和能量在4至 [14-16奥尔兹] 4. 研究文化适应的变化对 墨西哥裔美国人父母的饮食和身体活动行为， 4至[14-16]岁的儿童。 横截面分析的目的 1. 确定 体质、肥胖和吸烟与心血管疾病的关系 [14-16]岁儿童的生理和行为危险因素 墨西哥裔美国人和英裔美国人青年。 2. 检查关系 抑郁症与饮食、身体等心血管危险行为的关系 活动和健身，以及墨西哥裔美国人和英美人的吸烟 [14-16奥尔兹]

There are very few longitudinal study populations of Mexican-American and Anglo-American children and their parents which simultaneously investigate cardiovascular, behavioral and physiologic risk factors from preschool through early adolescence. Most of the studies of the determinants of diet and physical activity in children are cross-sectional. The current study population, still robust in cohort retention (nearly 68 percent after 7 years) will pass through adolescence in the next 3 years. This provides a unique opportunity to extend and combine the rich data already collected between ages 4-7, and again at ages 10-11, to the age period of [14-16] years. This study will continue the strengths of prior assessments of risk factors, health behaviors and behavioral determinants, but add adolescent-relevant measures of smoking behavior, feelings associated with depression, and peer influences; changing parental influences are also assessed. This study period will also concentrate on the influence of acculturation on these health behaviors in the Mexican-American population. This longitudinal study will add important data for investigators seeking a scientific basis for experimental manipulation of factors in intervention trials with youth of specific gender, ethnic and age characteristics. The specific aims of the study are prospective and cross-sectional, and for many of these aims, gender and ethnicity can be assessed as mediators of associations. In this study of young people and their mothers from two ethnic groups, aims of prospective analyses are to: 1. Study the determinants of physical activity and dietary intake of total fat, saturated fat, sodium, and energy, and changes in these behaviors in 4 year olds to [14-16] year olds. 2. Determine the relationships between diet and physical activity practices and physiologic indicators of risk, such as blood pressure, adiposity, body mass index, and serum lipoproteins at ages 4 to [14-16]years. 3. Describe the degree of tracking of physical activity habits and dietary intake of fat, sodium, and energy in 4 to [14-16] year olds. 4. Study the impact of changing acculturation on dietary and physical activity behaviors in Mexican-American parents and children from ages 4 to [14-16] years. Aims of cross-sectional analyses are to: 1. Determine the associations among physical fitness, adiposity, and smoking to CVD physiologic and behavioral risk factors in [14-16] year old Mexican-American and Anglo-American youth. 2. Examine the relationship of depression to cardiovascular risk behaviors of diet, physical activity and fitness, and smoking in Mexican-American and Anglo-American [14-16] year olds.