Efficacy of heart rate variability biofeedback in patients with coronary artery disease combined depressive symptoms
碩士 === 高雄醫學大學 === 心理學系碩士班 === 102 === Background: The previous studies indicated that CAD patients with depressive symptoms increased adverse cardiovascular prognosis and mortality, one of psychopathological mechanism is autonomic dysregulation, such as sympathetic hyperactivation and/or parasympath...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/36354444587870855330 |
| Summary: | 碩士 === 高雄醫學大學 === 心理學系碩士班 === 102 === Background: The previous studies indicated that CAD patients with depressive symptoms increased adverse cardiovascular prognosis and mortality, one of psychopathological mechanism is autonomic dysregulation, such as sympathetic hyperactivation and/or parasympathetic withdrawal. Low heart rate variability (HRV) was an index for the autonomic dysregulation. Heart rate variability biofeedback (HRV-BF) has been confirmed increasing HRV indices and improving adverse cardiovascular prognosis and mortality in patients with CAD. The aim of this study was examined HRV-BF in improving HRV and decreasing depression in CAD patients with depressive symptoms.
Methods: Thirty-two CAD patients with depressive symptoms were randomly assigned to the HRV-BF group and the waiting list control (WLC) group. HRV-BF group received the intervention for 60 minutes per week for six weeks. The HRV indices and depression score were measured at pre-test, post-test and one month follow-up.
Results: HRV-BF group have higher HRV (LF, lnLF) and heart rate
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amplitude at post-test and follow-up than WLC group. And depression severity was decreased in follow-up than pretest.
Conclusion: This study supports that HRV-BF can improve autonomic regulation and decreased the depression severity.
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