If you have a footrest, you sit in a chair (hopefully a soft, comfortable one), pull the footrest near to the chair and put both feet up on it:
How nice to come home from a day of job hunting to a chair with a footrest.
The plural form of footrest is footrests.
It takes your lower body pain off you.
One that is firm and will allow the feet to comfortably rest flat on the footrest. And that will fit with my chair height and allow my arms to be in the correct position.
The stirrups
A 30" Barstool footrest height should be (+-) 9" off the finished floor.
A 30" Barstool footrest height should be (+-) 9" off the finished floor.
Footrest
by properly handling them
His internal organs were working properly.
footrest, footstool, tuffet
Precautions for Safe Handling and Use
The dog would not have gotten loose if he'd been properly fettered!