| 摘要 |
A small lightweight yet strong frame (12) housing multiple flexible axles (22) which in turn support foam rubber roller balls (16), which roll about an axis creating: massage, intersegmental traction, trigger point therapy, and active exercise to the back of the user. These axles (22) are made more efficient by the placement of bushings (26) where they are contained by frame (12). Foam rubber balls (16) contain sleeves (30) which promote free rotation. A sliding head rest (38) is provided for comfort and is also used to facilitate optional concomitant neck and back treatment and multiple tension adjustments (46) (36) are provided for varying resistance to glide.
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