THE EFFECTS OF STRESS ON PHYSIOLOGICAL RESPONDING

压力对生理反应的影响

• 批准号: 6107564
• 负责人: VERNESSA R CLARK
• 金额: --
• 依托单位: MOREHOUSE COLLEGE
• 依托单位国家: 美国
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6107564
• 关键词: African American; adolescence (12-20); behavioral /social science research tag; blood pressure; cardiovascular function; caucasian American; coping; electrocardiography; gender difference; human subject; personality tests; prejudice; psychological defense mechanism; psychological stressor; psychophysiology; questionnaires; racial /ethnic difference; religion; statistics /biometry; stimulus /response; videotape /videodisc; visual stimulus; young adult human (21-34)

Hypertension, the "silent killer" is one of the leading causes of deaths in African Americans. In trying to identify those individuals that are prone to this disease, one must identify factors that influence cardiac output to psychological stressors. The proposed studies will examine the effects of aerobic fitness level, personality and cholesterol on cardiac reactivity to laboratory stressors. The first study will examine the effectiveness of tw forms of laboratory stressors. Cardiovascular activity and electromyographic activity will taken as subjects imagine or view a stressful racial scene on videotape. The second study will determine to what extent aerobic capacity, the Type A behavior pattern, Trait anxiety an Black Consciousness affect the heart rate, contractility force and cardiac output of 30 males and 30 females as they watch a stress inducing videotape It is hypothesized that there will be greater reactivity for low fit individuals. This reactivity is also proposed for Type A individuals and individuals high in anxiety. Last, it is hypothesized that those participants scoring high in Black Consciousness will have higher levels of responding to the videotape than their counterparts. The third study will investigate the efficacy of serum cholesterol as a predictor of cardiac reactivity to a stressful videotape an a bicycle ergometer in 30 male and 30 female college students. Measures of total serum cholesterol, high density lipoprotein cholesterol (HDL), low density lipoprotein cholesterol (LDL) and triglycerides will be assessed at a local medical facility. Thes measures will also be compared to the Type A behavior pattern, Trait anxiet & Black Consciousness. Because this is an exploratory study, no prediction will be made.

高血压，“沉默的杀手”，是死亡的主要原因之一， 非裔美国人 在试图识别那些倾向于 对于这种疾病，必须确定影响心输出量的因素， 心理压力源 拟议中的研究将审查 有氧健身水平，个性和胆固醇对心脏反应性的影响 实验室压力源 第一项研究将检查tw的有效性 实验室压力源的形式。 心血管活动和 当受试者想象或观看一个 紧张的种族冲突场面 第二项研究将确定， 有氧能力、A型行为模式、特质焦虑和 黑意识影响心率、收缩力和心脏 30名男性和30名女性在观看压力诱导录像带时的输出 据推测，低拟合将有更大的反应 个体 这种反应性也适用于A型个体， 高度焦虑的人。 最后，假设那些 在黑人意识中得分高的参与者将有更高的 对录像带的反应要比他们的同伴好。 第三项研究将 研究血清胆固醇作为心脏病预测因子的有效性 对30名男性进行了紧张录像和自行车测功试验， 30名女大学生 测量血清总胆固醇，高 密度脂蛋白胆固醇（HDL），低密度脂蛋白胆固醇 (LDL)和甘油三酯将在当地医疗机构进行评估。 Thes 测量也将比较A型行为模式，特质焦虑 黑色意识。 因为这是一项探索性研究，没有预测 将被制造。