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Evidence-Based Complementary and Alternative Medicine
Volume 2014 (2014), Article ID 203173, 7 pages
http://dx.doi.org/10.1155/2014/203173
Research Article

Effect of Yoga on Pain, Brain-Derived Neurotrophic Factor, and Serotonin in Premenopausal Women with Chronic Low Back Pain

1Graduate School of Alternative Medicine, Kyonggi University, 24 Kyonggidae-ro 9-gil, Seodaemun-gu, Seoul 120-702, Republic of Korea
2Division of General Studies, Seoil University, Yongmasan-ro 90-gil, Jungnang-gu, Seoul 131-702, Republic of Korea

Received 28 February 2014; Revised 24 June 2014; Accepted 26 June 2014; Published 10 July 2014

Academic Editor: Ke Ren

Copyright © 2014 Moseon Lee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Serotonin and brain-derived neurotrophic factor (BDNF) are known to be modulators of nociception. However, pain-related connection between yoga and those neuromodulators has not been investigated. Therefore, we aimed to evaluate the effect of yoga on pain, BDNF, and serotonin. Methods. Premenopausal women with chronic low back pain practiced yoga three times a week for 12 weeks. At baseline and after 12 weeks, back pain intensity was measured using visual analogue scale (VAS), and serum BDNF and serotonin levels were evaluated. Additionally, back flexibility and level of depression were assessed. Results. After 12-week yoga, VAS decreased in the yoga group ( ), whereas it increased ( ) in the control group. Back flexibility was improved in the yoga group ( ). Serum BDNF increased in the yoga group ( ), whereas it tended to decrease in the control group ( ). Serum serotonin maintained in the yoga group, while it reduced ( ) in the control group. The depression level maintained in the yoga group, whereas it tended to increase in the control group ( ). Conclusions. We propose that BDNF may be one of the key factors mediating beneficial effects of yoga on chronic low back pain.