The longstanding advice to “sit up straight” has been turned on its head by a new study that suggests leaning back is a much better posture.
Researchers analyzed different postures and concluded that the strain of sitting upright for long hours is a perpetrator of chronic back problems.
Using a new form of magnetic resonance imaging (MRI), researchers studied 22 volunteers with no back pain history. The subjects assumed three different positions: slouching; sitting up straight at 90 degrees; and sitting back with a 135-degree posture—all while their spines were scanned. (more…)