Amaral Joice A T, Nogueira Marcela L, Roque Adriano L, Guida Heraldo L, De Abreu Luiz Carlos, Raimundo Rodrigo Daminello, Vanderlei Luiz Carlos M, Ribeiro Vivian L, Ferreira Celso, Valenti Vitor E
Department of Physiotherapy and Occupational Therapy, Faculty of Philosophy and Sciences, UNESP (Marília), SP, Brazil.
Department of Speech Language and Hearing Therapy, Faculty of Philosophy and Sciences, UNESP (Presidente Prudente), SP, Brazil.
Turk Kardiyol Dern Ars. 2014 Mar;42(2):139-46. doi: 10.5543/tkda.2014.39000.
The effects of chronic music auditory stimulation on the cardiovascular system have been investigated in the literature. However, data regarding the acute effects of different styles of music on cardiac autonomic regulation are lacking. The literature has indicated that auditory stimulation with white noise above 50 dB induces cardiac responses. We aimed to evaluate the acute effects of classical baroque and heavy metal music of different intensities on cardiac autonomic regulation.
The study was performed in 16 healthy men aged 18-25 years. All procedures were performed in the same soundproof room. We analyzed heart rate variability (HRV) in time (standard deviation of normal-to-normal R-R intervals [SDNN], root-mean square of differences [RMSSD] and percentage of adjacent NN intervals with a difference of duration greater than 50 ms [pNN50]) and frequency (low frequency [LF], high frequency [HF] and LF/HF ratio) domains. HRV was recorded at rest for 10 minutes. Subsequently, the volunteers were exposed to one of the two musical styles (classical baroque or heavy metal music) for five minutes through an earphone, followed by a five-minute period of rest, and then they were exposed to the other style for another five minutes. The subjects were exposed to three equivalent sound levels (60-70dB, 70-80dB and 80-90dB). The sequence of songs was randomized for each individual.
Auditory stimulation with heavy metal music did not influence HRV indices in the time and frequency domains in the three equivalent sound level ranges. The same was observed with classical baroque musical auditory stimulation with the three equivalent sound level ranges.
Musical auditory stimulation of different intensities did not influence cardiac autonomic regulation in men.
文献中已对慢性音乐听觉刺激对心血管系统的影响进行了研究。然而，关于不同风格音乐对心脏自主调节的急性影响的数据却很缺乏。文献表明，50分贝以上的白噪声听觉刺激会引发心脏反应。我们旨在评估不同强度的古典巴洛克音乐和重金属音乐对心脏自主调节的急性影响。
该研究在16名年龄在18至25岁的健康男性中进行。所有程序均在同一隔音室内进行。我们在时域（正常到正常R-R间期的标准差[SDNN]、差值的均方根[RMSSD]以及持续时间差值大于50毫秒的相邻NN间期百分比[pNN50]）和频域（低频[LF]、高频[HF]和LF/HF比值）分析心率变异性（HRV）。在静息状态下记录HRV 10分钟。随后，志愿者通过耳机接触两种音乐风格之一（古典巴洛克音乐或重金属音乐）5分钟，接着休息5分钟，然后再接触另一种风格5分钟。受试者接触三种等效声级（60 - 70分贝、70 - 80分贝和80 - 90分贝）。每首歌曲的顺序对每个个体都是随机的。
在三个等效声级范围内，重金属音乐的听觉刺激在时域和频域均未影响HRV指标。对于古典巴洛克音乐的听觉刺激，在三个等效声级范围内也观察到了同样的结果。
不同强度的音乐听觉刺激对男性的心脏自主调节没有影响。
