主权项 |
1. A pelvis support assembly, comprising:
a bottom plate having a first end portion and a second end portion; a pelvis support plate having a first end portion and a second end portion, the first end portion of the pelvis support plate being pivotally coupled to the first end portion of the bottom plate, the pelvis support plate being sized to support a human pelvis region thereon; and a positional adjustment member operably coupled between the bottom plate and the pelvis support plate, the positional adjustment member configured to hold the pelvis support plate at one of a plurality of operational positions relative to the bottom plate. |