An isokinetic testing machine is disclosed having a support frame, a sub-assembly disposed on the support frame, a power source operably disposed within the sub-assembly, a first main arm having a proximal apex end and a distal end, the first main arm distal end is pivotally attached to the power source, a first torque arm pivotally and releasably attached to the first main arm proximal apex end, a user support area disposed on the support frame proximate to the first torque arm proximal end, a first load cell disposed within the first torque arm for measuring the torque when the first torque arm pivots, and wherein the first main arm and the torque arm can pivot and are configured to a desired position for isokinetic testing of the knees, the shoulders, and the back of the user.