Fuller B F
University of Colorado, Health Sciences Center, Denver 80262.
Int J Psychophysiol. 1992 Jan;12(1):81-6. doi: 10.1016/0167-8760(92)90045-d.
This study explored the effects of a naturally occurring stressor on the amplitudes of the respiratory sinus arrhythmia and Traube-Hering-Mayer bands of the power spectra of cardiac interbeat intervals of 15 Highly Anxious, 15 Truly Low Anxious and 15 Repressor women. Interbeat interval samples were obtained from 4.5 min tachygraph records while the subjects sat quietly 2 weeks before (2W), the day before (DB) and 1 week following (WA) their oral comprehensive examinations. Subjects also reported their state anxiety on each occasion. Repeated measures ANOVA indicated that subjects' state anxiety was greater on the DB than on the other two occasions. Heart rates were faster for the DB than for the 2W and WA occasions. Truly Low Anxious women had slower heart rates, across all occasions, than did Repressors or Highly Anxious women. Although respiratory sinus arrhythmia amplitudes did not differ across occasions, RSA amplitudes were smaller for individuals with high trait anxiety (Repressors and Highly Anxious) than for subjects with low trait anxiety (Truly Low Anxious). Traube-Hering-Mayer amplitudes were smaller on the DB than the 2W or WA occasions for all subjects and were smaller for Repressors or Highly Anxious women than for Truly Low Anxious women across occasions.
本研究探讨了一种自然发生的应激源对15名高度焦虑女性、15名真正低焦虑女性和15名压抑型女性的呼吸性窦性心律不齐幅度以及心脏搏动间期功率谱中的特劳贝-黑林-迈尔波带的影响。在受试者进行口腔综合检查前2周（2W）、前一天（DB）和后1周（WA）安静坐着时，从4.5分钟的心动描记图记录中获取搏动间期样本。受试者还在每次检查时报告了他们的状态焦虑。重复测量方差分析表明，受试者的状态焦虑在DB时比在其他两个时间点更高。DB时的心率比2W和WA时更快。在所有时间点，真正低焦虑的女性心率都比压抑型或高度焦虑的女性慢。尽管呼吸性窦性心律不齐幅度在各时间点无差异，但特质焦虑高的个体（压抑型和高度焦虑型）的呼吸性窦性心律不齐幅度比特质焦虑低的个体（真正低焦虑型）小。对于所有受试者，特劳贝-黑林-迈尔波带幅度在DB时比2W或WA时小，且在各时间点，压抑型或高度焦虑的女性比特真正低焦虑的女性小。
