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Event-Related Potential Changes Following 12-week Yoga Practice in T2DM Patients: A Randomized Controlled Trial
Amit Kanthi1, Singh Deepeshwar2, Kaligal Chidananda1
1Swami Vivekananda Yoga Anusandhana Samsthana (S-VYASA), Bangalore, India.
Twelve weeks of yoga practice improved cognitive function in Type 2 diabetes patients by enhancing neural efficiency and conflict monitoring. This improvement was linked to better glycemic control, as indicated by reduced HbA1c levels.
Area of Science:
- Neuroscience
- Endocrinology
- Integrative Medicine
Background:
- Type 2 diabetes mellitus (T2DM) is associated with an increased risk of cognitive decline and dementia.
- Cognitive impairment is an under-recognized complication in T2DM patients, significantly impacting their quality of life.
- Understanding the factors influencing cognitive function in T2DM is crucial for developing effective interventions.
Purpose of the Study:
- To investigate the effects of a 12-week yoga intervention on cognitive performance in T2DM patients.
- To identify potential contributing factors, such as heart rate variability (HRV) and HbA1c levels, to cognitive changes.
- To examine the neural mechanisms underlying cognitive improvements using event-related potentials (ERPs).
Main Methods:
- A parallel-group randomized controlled trial comparing a yoga group (n=25) with a wait-list control group (n=29).
- Assessment of N200 and N450 event-related potential (ERP) components during a Stroop task.
- Measurement of heart rate variability (HRV) and HbA1c levels before and after the 12-week intervention.
Main Results:
- Yoga practice significantly improved the N200 ERP component amplitude, indicating enhanced neural efficiency in conflict monitoring and response inhibition.
- T2DM patients in the yoga group exhibited reduced heart rate and increased mean RR interval, suggesting improved cardiac autonomic function.
- Yoga intervention led to a significant reduction in HbA1c levels, signifying improved glycemic control, which correlated negatively with reaction time post-intervention.
Conclusions:
- A 12-week yoga practice effectively enhances cognitive performance in T2DM patients, specifically improving conflict monitoring and response inhibition.
- Improved glycemic control, evidenced by reduced HbA1c, plays a facilitating role in the observed cognitive enhancements.
- Yoga offers a promising non-pharmacological approach to mitigate cognitive decline in individuals with Type 2 diabetes.
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