Telles Shirley, Gupta Ram Kumar, Yadav Arti, Pathak Shivangi, Balkrishna Acharya
Patanjali Research Foundation, Patanjali Yogpeeth, Maharishi Dayanand Gram, Bahadrabad, Haridwar, Uttarakhand, 249402, India.
BMC Res Notes. 2017 Jul 24;10(1):306. doi: 10.1186/s13104-017-2625-6.
Previously, forced unilateral nostril breathing was associated with ipsilateral, or contralateral cerebral hemisphere changes, or no change. Hence it was inconclusive. The present study was conducted on 13 normal healthy participants to determine the effects of alternate nostril yoga breathing on (a) cerebral hemisphere asymmetry, and (b) changes in the standard EEG bands.
Participants were randomly allocated to three sessions (a) alternate nostril yoga breathing (ANYB), (b) breath awareness and (c) quiet sitting, on separate days. EEG was recorded from bilaterally symmetrical sites (FP, FP, C, C, O and O). All sites were referenced to the ipsilateral ear lobe.
There was no change in cerebral hemisphere symmetry. The relative power in the theta band was decreased during alternate nostril yoga breathing (ANYB) and the beta amplitude was lower after ANYB. During quiet sitting the relative power in the beta band increased, while the amplitude of the alpha band reduced.
The results suggest that ANYB was associated with greater calmness, whereas quiet sitting without specific directions was associated with arousal. The results imply a possible use of ANYB for stress and anxiety reduction.
此前，强制单侧鼻孔呼吸与同侧或对侧大脑半球变化相关，或无变化。因此尚无定论。本研究对13名正常健康参与者进行，以确定交替鼻孔瑜伽呼吸对（a）大脑半球不对称性，以及（b）标准脑电图频段变化的影响。
参与者被随机分配到三个环节（a）交替鼻孔瑜伽呼吸（ANYB），（b）呼吸觉察和（c）安静静坐，在不同日期进行。脑电图记录于双侧对称部位（FP、FP、C、C、O和O）。所有部位均参考同侧耳垂。
大脑半球对称性无变化。在交替鼻孔瑜伽呼吸（ANYB）期间，θ频段的相对功率降低，ANYB后β波幅较低。在安静静坐期间，β频段的相对功率增加，而α波幅降低。
结果表明，ANYB与更高的平静度相关，而无特定指导的安静静坐与唤醒相关。结果意味着ANYB可能用于减轻压力和焦虑。
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