THE EFFECTS OF STRESS ON PHYSIOLOGICAL RESPONDING

高血压--“沉默的杀手”--是导致 非裔美国人。试图找出那些容易感染的个体 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。第一项研究将检验TW的有效性。 实验室应激源的形式。心血管活动和 肌电活动将被视为受试者想象或观看 录像带上充满压力的种族场面。第二项研究将确定 有氧运动能力、A型行为模式、特质焦虑和 黑人意识影响心率、收缩力和心脏 30名男性和30名女性观看压力诱导录像带时的输出 假设低适合度会有更大的反应性 个人。这种反应性也适用于A型个体和 高度焦虑的个人。最后，假设那些 黑人意识得分高的参与者将拥有更高水平的 对录像带的反应比他们的同行更多。第三项研究将 探讨血清胆固醇作为心脏疾病预测因子的有效性 30名男性和女性对自行车测功器应激录像带的反应性 30名女大学生。血清总胆固醇的测量，高 密度脂蛋白胆固醇、低密度脂蛋白胆固醇 (低密度脂蛋白)和甘油三酯将在当地医疗机构进行评估。牛膝 测量还将与A型行为模式、特质焦虑进行比较 &黑人意识。因为这是一项探索性研究，没有预见性 都会被制造出来。

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.