LONG-TERM YOGA PRACTICE ENHANCES MEMORY AND RESPIRATORY FUNCTION: A PILOT INVESTIGATION IN POST-GRADUATE YOGA STUDENTS

Abstract

Background: While short-term yoga interventions have demonstrated cognitive and physiological benefits, the effects of comprehensive, long-term yogic training incorporating the full spectrum of traditional practices remain inadequately characterized. This pilot study investigated the impact of systematic yoga practice on memory function and respiratory capacity in post-graduate students undergoing intensive yogic education.

Methods: Eighty post-graduate yoga students (42 males, 38 females; mean age 22.66 ± 2.42 years, range 21-29) participating in M.Sc. Yogic Science programs underwent comprehensive assessment of memory function using Wechsler Memory Scale (WMS) and Postgraduate Institute Memory Scale (PGI-MS), along with spirometric evaluation of respiratory parameters including forced vital capacity (FVC), forced expiratory volume (FEV), peak expiratory flow rate (PEFR), and maximum voluntary ventilation (MVV). Assessments were conducted before and after structured yogic training incorporating Kriyas, Asanas, Pranayama, Bandhas, and Mudras practiced six days weekly.

Results: All respiratory parameters demonstrated highly significant improvements: FVC increased 18.18 ± 5.24% (p < 0.001), FEV improved 18.20 ± 5.30% (p < 0.001), PEFR enhanced 18.19 ± 5.26% (p < 0.001), and MVV increased 18.19 ± 5.33% (p < 0.001). Memory assessments revealed significant enhancements: WMS scores increased 14.76 ± 4.02% (p < 0.001) and PGI-MS scores improved 11.29 ± 2.71% (p < 0.001). No significant gender differences emerged. Correlations between respiratory and memory improvements were weak (r = -0.04 to 0.17).

 Conclusions: Comprehensive, long-term yoga practice produces substantial improvements in both memory function and respiratory capacity. The uniform respiratory enhancement and concurrent but weakly correlated cognitive improvements indicate multifaceted benefits operating through partially independent pathways.