Motion Capture Analysis of Sacroiliac Joint Motion After Manipulation

May 1, 2013 updated by: Dennis Enix, DC, MBA, Logan College of Chiropractic
The purpose of this study is to examine the effects of manipulation on sacroiliac joint motion using a Polhemus motion capture system.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The Sacroiliac (SI) joint is a diarthrodial joint with the contradictory biomechanical function of transmitting compressive loads from the lumbar spine to the lower extremity while maintaining a nutating motion in the pelvis.

Recent studies identify the Sacroiliac (SI) joints as a significant source of pain in patients with chronic low back pain, contributing up to 27%. Recent studies have demonstrated that historical and physical examination findings and radiological imaging alone are insufficient to diagnose SI joint pain.

The purpose of this study is to examine the effects of manipulation on sacroiliac joint motion using a Polhemus motion capture system. The Absolute angular deviation of sacroiliac joint motion will be assessed during the normal gait cycle with the Polhemus Liberty motion capture system. Six sensors will be attached to specific anatomical landmarks of the pelvis which recorded motion characteristics while walking on a treadmill at 5 mph. The subjects then receive a HVLA manipulation to the SI joint and were retested at the same treadmill speed.

The Motion capture system tracks objects at a speed of 240 updates per second on all sensors simultaneously. The latency of data sampling is less than 4ms; 240 x 60 sec x 8 Sensors totaling 115,200 data points per minute. The system generates and tracks electromagnetic fields (EMF), computes position and orientation of sensors in an X, Y, and Z coordinate system while interfacing with a computer. The EMF source contains electromagnetic coils that emit a magnetic field. The source is the system's reference frame for sensor measurements. The sensor contains electromagnetic coils (accelerometers) that detect the position and orientation of the magnetic fields emitted by the EMF source.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Missouri
      • Chesterfield, Missouri, United States, 63006
        • Logan College of Chiropractic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 40 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Ages between 20 and 40
  • Ability to maintain normal balance
  • Willingness to undergo HVLA manipulation to the SI Joints
  • Normal blood pressure

Exclusion Criteria:

  • Any visual or vestibular condition or systemic illness that would affect balance
  • Any recent surgery, unstable joints of the lower extremity, recent hip and knee joint replacements or fitted hip or knee pins, bolts and/or plates
  • Currently have any infection, acute inflammation, recent wounds, injury, tumors or other malignancy
  • Currently taking any medications; prescription or herbal muscle stimulants, relaxants, etc.
  • A history of acute disc herniation, discopathy or spondylolysis
  • A history of acute thrombosis, serious cardiovascular disease, diabetes, have irregular heartbeats(arrhythmia) or wear a pacemaker
  • Any implanted device or prosthesis type of device
  • Any Spinal manipulation within 48 hours
  • Ages under 20 and over 40
  • Estimated BMI greater than 30

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: A
Manipulation
Procedure: Manipulation
HVLA manipulation to Sacroiliac Joint

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Sacroiliac joint motion was assessed with the Polhemus Liberty motion capture system.
Time Frame: Pre and Post therapy
Pre and Post therapy

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Logan College of Chiropractic

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2007

Primary Completion (Actual)

March 1, 2008

Study Completion (Actual)

March 1, 2008

Study Registration Dates

First Submitted

February 12, 2008

First Submitted That Met QC Criteria

February 21, 2008

First Posted (Estimate)

February 22, 2008

Study Record Updates

Last Update Posted (Estimate)

May 3, 2013

Last Update Submitted That Met QC Criteria

May 1, 2013

Last Verified

May 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • RD0524070094

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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