Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
PMC full text:
Man Ther. Author manuscript; available in PMC 2016 Dec 1.
Published in final edited form as:
Man Ther. 2015 Dec; 20(6): 797–804.
Published online 2015 Mar 27. doi:  10.1016/j.math.2015.03.008

Figure 1

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Schematic of the preparation for delivering spinal manipulation to the lumbar spine while recording sensory input from the dorsal roots. The motor was controlled by a programmable, electronic feedback system (not shown). Tissues of the vertebrae receiving a spinal manipulation (L6 and L7) remained intact including the skin. Rotary motion of the motor’s lever arm was converted to linear motion by a custom built converter. The converter in turn was attached to a rod terminating in a small, circular, plastic tip (5mm diameter) placed on the intact skin at the contact site. Micrometers attached to the 3-axis gantry allowed positioning of the manipulator’s tip to within 0.05mm of an intended contact site.