Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention

Madhu D R; Ambarish Vijayaraghava; Venkatesh Doreswamy; Omkar Subbaramajois Narasipur

doi:10.5455/njppp.2017.7.1234112122016

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Online Published: 20 Dec 2016

Natl J Physiol Pharm Pharmacol. 2017; 7(3): 317-322

doi: 10.5455/njppp.2017.7.1234112122016

Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention

Madhu D R, Ambarish Vijayaraghava, Venkatesh Doreswamy, Omkar Subbaramajois Narasipur.

Abstract
Background: Modern lifestyle and daily stress due to various causes have an adverse effect on cardiovascular health. Yoga modulates the sympathetic nervous system and hypothalamic-pituitary axis to decrease the effects of stress. Increase in cardiac output (CO) within physiological limits has health benefits.

Aims and Objective: We compared the alteration in CO in subjects practicing yoga and those not practicing yoga before and after exposure to an exercise challenge.

Materials and Methods: A total of 94 healthy male subjects in the age group 20 to 60 years were included in the study. Subjects were divided into two groups. Yoga group (n = 47, mean age: 43.95 ± 6.61 years, mean body mass index (BMI): 24.09 ± 4.19 kg/m2) consisted of subjects who had practiced yoga (Asanas, Pranayama, and meditation) for over 2 years. Nonyoga group (n = 47, mean age: 44.17 ± 6.48 years, mean BMI: 24.33 ± 4.97 kg/m2) did not perform yoga or any other form of regular physical activity for the same duration. CO was measured using non-invasive CO monitor of L and T systems.

Results: CO before exercise in yoga and non-yoga groups was 4.21 ± 0.63 L/min and 4.08 ± 0.57 L/min, respectively. The values of CO after exercise in yoga and non-yoga groups were 5.71 ± 0.58 L/min and 4.94 ± 0.53 L/min, respectively. CO after exercise challenge and difference in change of CO was statistically significant (P < 0.05) between the two groups. CO was significantly increased in yoga group after exercise but not in nonyoga group.

Conclusion: There was a significant increase in CO after exercise in practitioners of yoga indicating an increase in cardiovascular endurance in practitioners of yoga.

Key words: Yoga; Physical Stress; Exercise; Cardiac Output

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How to Cite this Article

Pubmed Style

R MD, Vijayaraghava A, Doreswamy V, Narasipur OS. Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention. Natl J Physiol Pharm Pharmacol. 2017; 7(3): 317-322. doi:10.5455/njppp.2017.7.1234112122016

Web Style

R MD, Vijayaraghava A, Doreswamy V, Narasipur OS. Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention. https://www.njppp.com/?mno=252238 [Access: November 01, 2025]. doi:10.5455/njppp.2017.7.1234112122016

AMA (American Medical Association) Style

R MD, Vijayaraghava A, Doreswamy V, Narasipur OS. Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention. Natl J Physiol Pharm Pharmacol. 2017; 7(3): 317-322. doi:10.5455/njppp.2017.7.1234112122016

Vancouver/ICMJE Style

R MD, Vijayaraghava A, Doreswamy V, Narasipur OS. Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention. Natl J Physiol Pharm Pharmacol. (2017), [cited November 01, 2025]; 7(3): 317-322. doi:10.5455/njppp.2017.7.1234112122016

Harvard Style

R, M. D., Vijayaraghava, . A., Doreswamy, . V. & Narasipur, . O. S. (2017) Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention. Natl J Physiol Pharm Pharmacol, 7 (3), 317-322. doi:10.5455/njppp.2017.7.1234112122016

Turabian Style

R, Madhu D, Ambarish Vijayaraghava, Venkatesh Doreswamy, and Omkar Subbaramajois Narasipur. 2017. Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention. National Journal of Physiology, Pharmacy and Pharmacology, 7 (3), 317-322. doi:10.5455/njppp.2017.7.1234112122016

Chicago Style

R, Madhu D, Ambarish Vijayaraghava, Venkatesh Doreswamy, and Omkar Subbaramajois Narasipur. "Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention." National Journal of Physiology, Pharmacy and Pharmacology 7 (2017), 317-322. doi:10.5455/njppp.2017.7.1234112122016

MLA (The Modern Language Association) Style

R, Madhu D, Ambarish Vijayaraghava, Venkatesh Doreswamy, and Omkar Subbaramajois Narasipur. "Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention." National Journal of Physiology, Pharmacy and Pharmacology 7.3 (2017), 317-322. Print. doi:10.5455/njppp.2017.7.1234112122016

APA (American Psychological Association) Style

R, M. D., Vijayaraghava, . A., Doreswamy, . V. & Narasipur, . O. S. (2017) Comparison of cardiac output between practitioners and nonpractitioners of yoga before and after physical stress intervention. National Journal of Physiology, Pharmacy and Pharmacology, 7 (3), 317-322. doi:10.5455/njppp.2017.7.1234112122016

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