Fig. 1
From: The effect of the rotator interval on glenohumeral kinematics during abduction
Robotic testing system that generates automated motion segments for a cadaveric torso over a designated trajectory. The seven degrees of freedom testing apparatus was designed and manufactured with four actuators on the lower frame to move the torso and with three actuators on the upper frame to move the hand with an additional rotational axis added to the lower frame to rotate the torso. a Apparatus schematic. b Apparatus photograph