| 摘要 |
An inflatable bladder is used to articulate the spine of a user. A pelvis pad includes a support frame and a pliable cushion positioned thereon. The bladder is supported on the support frame and received by a void in the cushion. In the preferred embodiment the bladder includes two upper portions that extend away from the support frame toward the body of the user. The upper portions of the bladder, or two separate bladders, are cylindrical in shape when expanded. The void in the cushion is also cylindrical in shape and therefore acts to guide the expansion and contraction of the bladders or upper portions of the bladder. The upper portions are preferably positioned eleven inches apart and inflate at least two inches above the support frame. This proximity of the upper portions of the bladder fit the width of the right and left anterior superior illiac spine along the illiac crest of the pelvis. Expansion of the bladder applies a posterior force to the pelvis through the illiac crest and rotates the pelvis. This manipulates the lumbar spine to stretch the muscles of the lower back and increase the posterior disk spacing of the lumbar vertebrae, providing mild lumbar traction.
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