title: The effect of sacro occipital technique category II blocking on spinal ranges of motion: a case series.
abstract: OBJECTIVE
  To describe changes in lumbar and cervical range of motion measurements after supine pelvic blocking as used in Sacro Occipital Technique (SOT).
  
  
  METHODS
  Five subjects with sacroiliac distortion and instability were recruited and selected for SOT. Cervical and lumbar ranges of motion were measured before and after category II blocking procedures used to change pelvic mechanics. Pre- and post-measurements were taken by a blinded assessor using a Zebris ultrasonic motion detector.
  
  
  RESULTS
  Changes were found in the lumbar spine only. Increased ranges of lumbar motion occurred in all planes except extension (21%-57%).
  
  
  CONCLUSIONS
  Supine pelvic blocking as used in SOT affected lumbar ranges of motion in these 5 cases. This may indicate that functional change in the pelvis results in changes in lumbar motion, especially lumbar flexion. Larger data sets are needed for further study.
authors.affiliation: Department of Technique and Analysis, College of Chiropractic, Life University, Marietta, GA 30062, USA.
authors.forename: Jerry I
authors.initials: JI
authors.lastname: Hochman
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000628:therapy*; D008297:Male; D026882:Manipulation, Chiropractic / Q000379:methods*; D016059:Range of Motion, Articular / Q000502:physiology*; D012446:Sacroiliac Joint / Q000502:physiology*; D013131:Spine