Depressive symptomatology and respiratory sinus arrhythmia in a non-clinical sample of middle-aged African Americans.
Depressive symptomatology and respiratory sinus arrhythmia in a non-clinical sample of middle-aged African Americans.
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DOI：
10.1016/j.biopsycho.2015.03.008
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发表时间：
2015-05
影响因子：
2.6
通讯作者：
Campbell, Alfonso, Jr.
中科院分区：
文献类型：
--
作者：
Keen, Larry, II;Turner, Arlener D.;Mwendwa, Denee;Callender, Clive;Campbell, Alfonso, Jr.
关键词：
心率变异性降低和抑郁症都是临床和非临床样本中心脏死亡的独立危险因素。本研究的目的是检验非裔美国人非临床样本中抑郁症状的严重程度与呼吸性窦性心律失常 (RSA) 呈负相关的假设。样本包括 77 名非裔美国人，平均年龄为 48.4 岁 (SD=11.7)。参与者完成了贝克抑郁量表 II (BDI-II)，并收集了 RSA 的五分钟静息基线测量值。 BDI-II 总分与 RSA 呈正相关（β = .334，p = .008）。考虑到这种关联的出人意料的方向，我们将 BDI-II 分为认知和躯体情感分量表，以确定哪种结构正在驱动这种关系。躯体情感与 RSA 相关（β = .328，p = .010），但与认知分量表无关。鉴于这一意外的积极结果，未来的研究应该进一步研究非裔美国人抑郁症状与 RSA 之间关系的性质，因为这种关系可能会根据抑郁症状水平的不同而有所不同。
Decreased heart rate variability and depression are both independent risk factors for cardiac mortality in clinical and non-clinical samples. The purpose of the current study is to examine the hypothesis that severity of depressive symptomatology is inversely associated with respiratory sinus arrhythmia (RSA) in a non-clinical sample of African Americans. The sample included 77 African Americans with a mean age of 48.4 (SD=11.7). Participants completed the Beck Depression Inventory-II (BDI-II) and a five-minute resting baseline measurement of RSA was collected. The BDI-II total score was positively associated with RSA (β = .334, p = .008). Given the unexpected direction of the association, we separated the BDI-II into cognitive and somatic affective subscales to identify which construct was driving the relationship. The somatic affective, was related to RSA (β = .328, p = .010), but not the cognitive subscale. Given this unexpected positive result, future research should further examine the nature of the relationship between depressive symptomatology and RSA in African Americans, as the relationship may vary based on levels of depressive symptomatology.
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