Yoga can reduce lower back pain.

Yoga can reduce lower back pain
November 7 2009 | Times of India Kolkata

Washington: Yoga may be more effective than standard treatment in reducing chronic low back pain in minority populations, according to a new study.
Individuals from low-income , minority backgrounds with chronic lower back pain (CLBP) may be more affected due to disparities in access to treatment.
Although many CLBP patients seek relief from complementary therapies such as yoga, use of these approaches are less common among minorities and individuals with lower incomes or less education. For the study, researchers from Boston University School of Medicine (BUSM) and Boston Medical Center recruited adults with CLBP from two community health centres that serve racially diverse , low-income neighbourhoods of Boston. 

They were randomly assigned to either a standardized 12-week series of hatha yoga classes or standard treatment including doctors visits and medications.
As part of the trial, the researchers asked participants to report their average pain intensity for the previous week, how their function is limited due to back pain, and how much pain medication they are taking.
The yoga group participated in 12 weekly 75-minute classes that included postures, breathing techniques, and meditation.
Classes were taught by a team of registered yoga teachers and were limited to eight participants. Home practice for 30 minutes daily was strongly encouraged.
Participants were provided with an audio CD of the class, a handbook describing and depicting the exercises, a yoga mat, strap, and block. AGENCIES