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Yoga Eases Back Pain in Largest U.S. Yoga Study to Date

Posted: November 2, 2011

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Both the yoga and stretching classes emphasized the torso and legs:

The type of yoga used in the trial, called viniyoga, adapts the principles of yoga for each individual and physical condition, with modifications for people with physical limitations. The yoga classes also used breathing exercises, with a deep relaxation at the end.

The stretching classes used 15 different stretching exercises, including stretches of the hamstrings and hip flexors and rotators. Each was held for a minute and repeated once, for a total of 52 minutes of stretching. Strengthening exercises were also included.

"We expected back pain to ease more with yoga than with stretching, so our findings surprised us," Sherman said. "The most straightforward interpretation of our findings would be that yoga's benefits on back function and symptoms were largely physical, due to the stretching and strengthening of muscles."

But the stretching classes included a lot more stretching than in most such classes, with each stretch held for a relatively long time. "People may have actually begun to relax more in the stretching classes than they would in a typical exercise class," she added. "In retrospect, we realized that these stretching classes were a bit more like yoga than a more typical exercise program would be." So the trial might have compared rather similar programs with each other.