| 摘要 |
Securing straps are attached to two legs of a standard bed and extend under the bed and up the side onto the top surface of the bed where they are attached to the user's legs near the ankles by cuffs. The user can then extend their upper body off the edge of the bed so that it can move through a wide range of angles above and below the plane of the top surface of the bed. The securing straps and cuffs hold the user's lower body in place during these exercises, allowing the user to exercise all of their core muscles through the zone of peak gravitational resistance.
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