Fig. 4From: The reliability of spinal motion palpation determination of the location of the stiffest spinal site is influenced by confidence ratings: a secondary analysis of three studiesIf examiner 1 finds the SSS at bottom or top of vertebra (left), 1.5VE difference for examiner 2 suggests agreement on either the motion segment above or the adjacent motion segment below. If examiner 1 finds the SSS near middle of vertebra (right), 1.5VE difference for examiner suggests agreement on either the motion segment above or belowBack to article page