標題: | Variation Analysis of Sphygmogram to Assess Cardiovascular System under Meditation |
作者: | Liu, Chuan-Yi Wei, Ching-Chuan Lo, Pei-Chen 電控工程研究所 電信工程研究所 Institute of Electrical and Control Engineering Institute of Communications Engineering |
關鍵字: | blood pressure waveform;cardiovascular system;meditation;sphygmogram |
公開日期: | 1-三月-2009 |
摘要: | In this article, we studied how meditation affects the characteristics of the cardiovascular system, mainly based on blood pressure waveforms (BPW). Four parameters derived from BPW include the rising slope (h(1)/t(1)), normalized height of T wave (h(3)/h(1)), normalized height of V(3) valley (h(4)/h(1)) and normalized height of D wave (h(5)/h(1)), where t(1) and h(i), i 1, ,5 are quantitative features of the BPW waveform pattern. A larger value of h(1)/t(1) reflects better heart ejection ability and aorta compliance. A larger value of h(3)/h(1) may infer an arterial system with good elasticity. The decrease (increase) of h(4)/h(1) parameter indicates the decrease (increase) of peripheral resistance of vessels. A larger value of h(5)/h(1) indicates better artery elasticity and aortic valve function. In comparison with the control group, Zen-meditation practitioners have more after-meditation h(1)/t(1), h(3)/h(1) and h(5)/h(1) increase, with more h(4)/h(1) decrease, with statistical significance (P 0.05). The observation allows us to infer that Zen meditation may effectively improve relevant characteristics of the cardiovascular system. |
URI: | http://dx.doi.org/10.1093/ecam/nem065 http://hdl.handle.net/11536/7525 |
ISSN: | 1741-427X |
DOI: | 10.1093/ecam/nem065 |
期刊: | EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE |
Volume: | 6 |
Issue: | 1 |
起始頁: | 107 |
結束頁: | 112 |
顯示於類別: | 期刊論文 |