US study certifies yoga does ease backache - Thaindian NewsThaindian NewsHomeAbout UsTop Stories US study certifies yoga does ease backache October 25th, 2011 - 2:06 pm ICT by IANS Tweet Washington, Oct 25 (IANS) One of the largest US studies on yoga certifies that it does ease chronic back pain and other associated symptoms.???We found yoga classes more effective than a self-care book,??? said Ka