探討寧靜和搖滾音樂對心肺交互作用之影響

Abstract

本研究的目的是利用分析心率變異(Heart rate variability, HRV)、呼吸性竇性心律不整(Respiratory sinus arrhythmia, RSA)的表現和心肺同步觀測圖(Synchrogram)等方法來探討寧靜和搖滾音樂對心肺交互作用之影響。心率變異分析提供了評估自主神經系統在不同心理壓力階段下的訊息。量化呼吸性竇性心律不整顯示了每位受測者心律和呼吸之間的相關性。同步觀測圖基於R-peak相位與呼吸週期之間的分析可得到心肺相互作用的現象。本論文中所分析的對象為18位年齡介在20-25歲間的健康受測者。根據心率變異分析結果，多數的受測者於寧靜音樂階段下，自主神經系統有著較佳的活性且由副交感神經主導。在量化呼吸性竇性心律不整的分析中，寧靜音樂階段比搖滾音樂階段更能維持較明顯的呼吸性竇性心律不整現象。皮爾森相關係數(Pearson's correlation coefficient, PCC)提供了量化心肺之間相互作用關係的方法，結果顯示，寧靜音樂階段有較好的心肺同步率。最後，同步觀測圖上的擬合線技術則提供了一個長期概觀心肺功能的呈現。同步觀測圖的擬合線結果反映了寧靜音樂階段呈現較稀疏的線分佈，但具有更好的平行性，它表示較佳的心肺同步。

This research is aimed to investigate the effect of calm and rock music on cardiorespiratory interactions by heart rate variability (HRV), respiratory sinus arrhythmia (RSA) behavior and cardiorespiratory synchrogram. HRV provides the information for evaluating the activity of autonomic nervous system (ANS) at different mental-stress levels. Quantification of respiratory sinus arrhythmia reflects the correlation between cardiac rhythm and respiratory pattern in each subject. Synchrogram analysis based on the R-peak phase and respiratory cycle can be used to evaluate the performance of cardiorespiratory interactions. This study included 18 healthy subjects in the age range of 20-25 years. According to our HRV results, most subjects have vigorous ANS activity and dominated parasympathetic nervous system in the calm-music session. In the RSA analysis, calm-music session induces more apparent respiratory sinus arrhythmia phenomenon than rock-music session. Pearson's correlation coefficient (PCC) method is applied to quantify cardiorespiratory interaction. Results reveal that most subjects have better cardiorespiratory synchronization in the calm-music session. Finally, the line-fitted synchrogram provides a long-term overview of the quality and performance of cardiorespiratory functioning. Results of line fitting of synchrogram reflect that the calm-music session exhibits rather sparse distribution of lines, yet, with better parallelism. It indicates the prominent cardiorespiratory synchronization.