Cognitive behavior evaluation based on physiological parameters among young healthy subjects with yoga as...

Area of Science:

• Neuroscience
• Physiology
• Integrative Medicine

Background:

• Cognitive skills and autonomic nervous system (ANS) function are crucial for overall health.
• Heart rate variability (HRV) is a key indicator of ANS balance and health.
• Yoga is a mind-body practice with potential benefits for both cognitive and physiological functions.

Purpose of the Study:

• To investigate the impact of regular yoga practice on cognitive skills.
• To analyze the effects of yoga on the autonomic nervous system.
• To assess changes in heart rate variability following yoga intervention.

Main Methods:

• A study involving 30 healthy engineering students randomly assigned to a yoga or control group.
• The yoga group engaged in 1.5 hours of daily practice, six days a week, for five months.
• Physiological parameters, including EEG and HRV, were analyzed to measure cognitive and ANS function.

Main Results:

• Yoga practitioners exhibited increased alpha (α), beta (β), and delta (δ) EEG band powers, suggesting enhanced cognitive functions like memory and concentration, and brain activity synchronization.
• Significant improvements in heart rate variability were observed, indicated by increased SDNN/RMSSD and a reduced LF/HF ratio.
• Various cognitive indices improved, including attention resource index and executive function, alongside a decrease in executive load index.

Conclusions:

• Yoga practice significantly improves cognitive functions, including performance, neural activity, attention, and executive function.
• Regular yoga enhances heart rate variability, indicating increased parasympathetic nervous system activity.
• Yoga promotes a balanced autonomic nervous system reactivity and overall well-being.