title: Pilot study of the impact sacroiliac joint manipulation has on walking kinematics using motion analysis technology.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the feasibility of engaging in a series of larger studies measuring the effect of sacroiliac joint manipulation on walking kinematics using motion analysis technology.
  
  
  METHODS
  Twelve college students engaged in a baseline 90-second gait analysis at 1.5 mph using infrared VICON cameras. Following this, they underwent a prone heel comparison test for functional leg length inequality. Upon examination, participants were then classified as follows: left short leg, right short leg, or no short leg. Participants in each of the 2 short leg branches of this study were then randomized to receive either chiropractic manipulative therapy to the posterior superior iliac spine on the short limb side or no manipulation. Recruitment was ongoing for this pilot study until 1 participant was recruited in each of the following 5 comparative study groups: left short leg-manipulation, left short leg-no manipulation (control 1), right short leg-manipulation, right short leg-no manipulation (control 2), and no short leg (control 3). All participants then underwent another 90-second gait analysis. Data were then grouped and submitted to a blinded biomechanist to determine if there were any unique biomechanical differences between the groups.
  
  
  RESULTS
  No statistically significant differences were measured because of this being a pilot study with a small sample size.
  
  
  CONCLUSIONS
  The data from this study indicate that a series of larger studies with this design is feasible.
authors.affiliation: Associate Professor/Research Fellow, Department of Physiology and Chemistry, Texas Chiropractic College, Pasadena, TX.
authors.forename: John S
authors.initials: JS
authors.lastname: Ward
authors.affiliation: Professor, Chairman, Department of Clinical Specialties, Texas Chiropractic College, Pasadena, TX.
authors.forename: Jesse
authors.initials: J
authors.lastname: Coats
authors.affiliation: Professor, Department of Clinical Specialties, Department of Technique, Texas Chiropractic College, Pasadena, TX.
authors.forename: Kenneth
authors.initials: K
authors.lastname: Sorrels
authors.affiliation: Graduate Student, Department of Physiology and Chemistry, Texas Chiropractic College, Pasadena, TX.
authors.forename: Mathew
authors.initials: M
authors.lastname: Walters
authors.affiliation: Graduate Student, Department of Physiology and Chemistry, Texas Chiropractic College, Pasadena, TX.
authors.forename: Trevor
authors.initials: T
authors.lastname: Williams
keywords: Biomechanics; Gait; Locomotion; Manipulation, chiropractic