Portable foldaway low back/abdominal exercise machine

摘要

An exercise bench which consists of the main base (1) has two fixed pairs of legs which have pivots (7) allowing the machine to fold flat, a moving arm (2) fixed to the main base which also pivots (6) allowing backward and forward movements allowing a low back and abdominal exercise to be performed on a single machine, and a resistance provided by springs which hook on to the moving arm and base. The resistance is made variable by the addition or subtraction of springs.