The Back Hyperextension Machine
This contraption forced users to arch their backs over a curved wooden bench with straps holding their legs in place. The goal was to strengthen the lower back muscles by lifting and lowering the torso against gravity.
Unfortunately, the machine’s fixed curve didn’t fit all body types, leading to uncomfortable pressure points and even spinal injury in some cases. Without proper guidance, users could hyperextend and cause lasting back damage. Despite its good intentions, this machine was as much a torture device as a fitness tool for many.
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