Patent ID: 8603012

Claim:
A muscle strength measuring apparatus comprising: a frame adapted for attachment to a fixed, vertical wall, the frame comprising horizontally oriented upper and lower L-shaped members, each L-shaped member comprising a horizontal first leg and a horizontal second leg perpendicular to the first leg; a backboard mounted to first legs of the upper and lower L-shaped members such that a plane of the backboard is parallel to the first legs, and second upper and lower legs extend perpendicular to the plane of the backboard; a force receiver mounted to an upright frame member extending between the second upper and lower legs of the L-shaped members such that the force receiver extends parallel to the plane of the backboard to define a testing space between the force receiver and the backboard; a force sensor connected to the force receiver, the force sensor operative to measure and indicate a force exerted on the force receiver; wherein the backboard provides a upright bracing surface rigidly positioned with respect to the force receiver, the surface oriented such that the surface and force receiver are separated by a lateral distance to provide the testing space between the surface and the force receiver; wherein the force receiver is vertically and horizontally adjustable with respect to the surface such that when the force receiver is in a first position with respect to the surface a person standing in the testing space can brace against the surface and exert a force against the force receiver with a first muscle on one side of the person's body, and can then exert a force on the force receiver with a corresponding first muscle on an opposite side of the person's body, and can then adjust a position of the force receiver to a second position with respect to the surface and exert a force against the force receiver with a second muscle on one side of the person's body, and can then exert a force on the force receiver with a corresponding second muscle on the opposite side of the person's body; and wherein the forces exerted against the force receiver are exerted in a direction perpendicular to the bracing surface.