This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
ChronicBackachefig. Fig Diagram of the apparatus for estimating the center of gravity scale balance plane on which patient stands facing block supporting triangular edge movable horizontal arm on upright for obtaining horizontal distances vertical upright for standard plane ledge against which heels are placed American Journal of