Yogic Practices and Their Influence on Hematological Responses: A Physiological Perspective

Background. Yoga, an ancient discipline integrating physical postures, breath control, and meditation, has been linked to various physiological benefits. Investigating its influence on hematological parameters is essential, as these are key indicators of health and performance. Objectives. This study aimed to assess the effects of yogic practices on hematological parameters —specifically hemoglobin (Hb), red blood cell (RBC) count, packed cell volume (PCV), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC) — among college students. Materials and Methods. A total of 20 male college students aged 17 to 22 years participated in the study. They were randomly assigned to either an experimental group (n=10), which underwent the yogic intervention, or a control group (n=10), which did not participate in any structured physical activity. The experimental group (EG) engaged in daily 60-minute sessions, six days per week, comprising Surya Namaskar, asanas, pranayama, and relaxation techniques. Hematological parameters were measured at baseline and after 12 weeks using the Tulip Coralyzer Smart 200, an automated hematology analyser. Statistical analysis was performed using paired and independent t-tests, with significance set at p < 0.05. Results. Post-intervention analysis revealed a statistically significant increase in Hb levels within the EG (p = .015), indicating enhanced oxygen-carrying capacity. No significant changes were observed in RBC count, PCV, MCV, MCH, and MCHC in either group. Conclusions. Significantly improved hemoglobin levels were determined in the EG, indicating potential benefits for oxygen transport and aerobic capacity. The findings demonstrate that enhancing other hematological parameters suggests selective hematological adaptations to yogic practices.