What is the main purpose of traction therapy in physical therapy?

The main purpose of traction therapy in physical therapy is to decompress spinal structures. This therapeutic technique involves applying a pulling force to the spine in a controlled manner, which creates space between the vertebrae. This decompression can help relieve pain, reduce pressure on spinal nerves, and improve alignment of the spine and its associated structures.

By creating this space, traction can help in the treatment of conditions such as herniated discs, spinal stenosis, and radiculopathy, where the pressure on the spinal column and nerves may lead to pain and dysfunction. Thus, decompression is the primary goal of traction therapy, making option B the correct choice.

Although traction may indirectly support muscle relaxation and potentially contribute to improved circulation over time, its defining intention is focused on alleviating pressure on the spinal structures. Strengthening muscles is not a direct goal of traction therapy, as its application is concentrated on the spine rather than on muscle activation or strengthening exercises.