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The Athletic Scale is a Sega re-branded distribution of the Mercury Athletic Scale, first produced in 1947.
The machine "measures" the strength of the player by having them perform a series of tasks, depending on the specific model of the scale: the "lift test," using a grab bar at the base of the scale, the "wrist test," using two knobs below the scale's measurements, the "Indian wrestling muscle test," using a metal handle at the top of the machine, and the "grip or knuckle test," using the grip handle connected to a circular disc.
The only known Sega Athletic Scale model appears to be either Mercury's "Twist and Grip" or "Deluxe" model. It is unknown at what date this machine was picked up for distribution, or to what countries or military bases.