Nagendra H, Kumar Vinod, Mukherjee S
Faculty in E & CE Department, Poojya Doddappa Appa College of Engineering, Kalaburagi 585 102, India ; Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee 247 667, India.
Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee 247 667, India.
Comput Math Methods Med. 2015;2015:821061. doi: 10.1155/2015/821061. Epub 2015 Feb 11.
To investigate the effect of yoga practice on cognitive skills, autonomic nervous system, and heart rate variability by analyzing physiological parameters.
The study was conducted on 30 normal young healthy engineering students. They were randomly selected into two groups: yoga group and control group. The yoga group practiced yoga one and half hour per day for six days in a week, for a period of five months.
The yoga practising group showed increased α, β, and δ EEG band powers and significant reduction in θ and γ band powers. The increased α and β power can represent enhanced cognitive functions such as memory and concentration, and that of δ signifies synchronization of brain activity. The heart rate index θ/α decreased, neural activity β/θ increased, attention resource index β/(α + θ) increased, executive load index (δ + θ)/α decreased, and the ratio (δ + θ)/(α + β) decreased. The yoga practice group showed improvement in heart rate variability, increased SDNN/RMSSD, and reduction in LF/HF ratio.
Yoga practising group showed significant improvement in various cognitive functions, such as performance enhancement, neural activity, attention, and executive function. It also resulted in increase in the heart rate variability, parasympathetic nervous system activity, and balanced autonomic nervous system reactivity.
通过分析生理参数，研究瑜伽练习对认知技能、自主神经系统和心率变异性的影响。
对30名正常的年轻健康工科学生进行研究。他们被随机分为两组：瑜伽组和对照组。瑜伽组每周六天每天练习瑜伽一个半小时，为期五个月。
瑜伽练习组的α、β和δ脑电频段功率增加，θ和γ频段功率显著降低。α和β功率增加可代表记忆和注意力等认知功能增强，δ功率增加表示大脑活动同步。心率指数θ/α降低，神经活动β/θ增加，注意力资源指数β/(α + θ)增加，执行负荷指数(δ + θ)/α降低，比率(δ + θ)/(α + β)降低。瑜伽练习组的心率变异性得到改善，SDNN/RMSSD增加，LF/HF比率降低。
瑜伽练习组在各种认知功能方面有显著改善，如表现增强、神经活动、注意力和执行功能。它还导致心率变异性增加、副交感神经系统活动增加以及自主神经系统反应性平衡。
