Vol. 7, Issue 2, Part E (2025)

This study assessed vital capacity variations in school boys due to distinct durations of Suryanamaskar practices. Forty-five boys aged 13-18 years from Govt. High School, Bayalasi, Jaunpur, U.P., were randomly assigned to three experimental groups (n = 15 each): Group A (20 minutes/session), Group B (30 minutes/session), and Group C (40 minutes/session). A pre-test post-test randomized groups design was employed, with twelve weeks of Dynamic and Traditional Suryanamaskar training. Vital capacity was measured pre- and post-intervention using standard spirometry protocols, analyzed via ANCOVA (p≤0.05) with SPSS version 26.0. Descriptive statistics showed pre-test means of 2133.33±382.04 ml (20 min), 2073.33±305.82 ml (30 min), and 2043.33±372.19 ml (40 min), improving to post-test means of 2552.00±369.54 ml, 2660.67±371.32 ml, and 2862.00±335.84 ml, respectively. ANCOVA revealed no significant pre-test differences (F = 2.234, p = 0.143), but significant post-test differences among groups (F = 3.309, p = 0.047, η² = 0.139). LSD post-hoc tests confirmed superiority of 40-min over 20-min group (mean difference = 330.71 ml, p = 0.015), indicating duration-dependent gains.  Longer Suryanamaskar sessions enhanced respiratory adaptations through improved chest expansion and muscle strength, aligning with prior findings (Gayathri & Sarojini, 2022; Karthik et al., 2014) [4, 7]. These results support integrating extended Suryanamaskar in school programs for pediatric respiratory health.