Abstract

This study investigated the immediate effect of slow yoga breathing at 6 breaths per minute simultaneously on working memory performance and heart rate variability in yoga practitioners. A total of 40 healthy male volunteers performed a working memory task, ‘n-back’, consisting of three levels of difficulty, 0-back, 1-back, and 2-back, separately, before and after three SYB sessions on different days. The SYB sessions included alternate nostril breathing, right nostril breathing, and breath awareness. Repeated measures analysis of variance showed a significant reduction in reaction time in 2-back condition immediately after ANB, RNB and BAW practices. Similarly, the accuracy was improved in the 0-back condition after RNB, and in the 2-back condition after ANB and RNB practices. These results suggest that SYB practice enhances cognitive abilities related to memory load and improves the functioning of cardiac autonomic activity, which is required for the successful completion of mental tasks.Trial registered in the Clinical Trials Registry of India.