Effect of yoga on cardiovascular functions and psychological aspects of people on public service-related work: an exploratory study.

Objectives: Yoga is increasingly being introduced in workplace settings to improve health and well-being. However, there is a lack of studies reporting the effect of yoga in people on public service-related work, who are at high risk for various health-related problems. Thus, the objective of this study was to find the effect of yoga on cardiovascular functions and psychological (stress, anxiety, and depression) aspects of people on public service-related work.

Methods: A single-group pre-test and post-test experimental study design was adopted. Eighty-two participants aged 41.52 ± 7.44 years who are working in the Tamil Nadu Public Service Commission were undergone 1-h of yoga (under the supervision of a yoga & naturopathy doctor) a day, 5-days a week for a period of 1-month at their office. Cardiovascular functions such as systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse rate (PR) were measured using an automatic BP monitor. Psychological variables such as stress, anxiety, and depression were measured using Depression Anxiety and Stress Scales (DASS) before and after the intervention.

Results: Results of this study showed a significant reduction in body mass index, SBP, DBP, PR, mean arterial pressure, rate pressure product, and double product. Though results showed insignificant (just missed the statistical significance [p=0.056]) reduction in anxiety, it showed clinical improvement (i.e. the mean anxiety score has reduced from moderate category to mild category). However, there is neither statistically significant nor clinical difference in stress and depression. None of the participants reported any untoward events during the study period.

Conclusions: Results suggest that yoga might improve the cardiovascular functions and anxiety of people in public service-related work. However, no such significant improvement was noted in their stress and depression levels. However, a randomized controlled trial is required to warrant the results of this study.