Index to Chiropractic Literature
Index to Chiropractic Literature
My ICL     Sign In
Thursday, March 28, 2024
Index to Chiropractic LiteratureIndex to Chiropractic LiteratureIndex to Chiropractic Literature
Share:


For best results switch to Advanced Search.
Article Detail
Return to Search Results
ID 562
  Title Multiple channel recording of the articular crack associated with manipulation of the metacarpophalangeal joint: An observational study
URL https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2051087/
Journal Australas Chiropr & Osteopat. 1999 Mar;8(1):16-20
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

Background: The audible release or cracking sound associated with spinal manipulation is familiar to practitioners of spinal manipulative therapy. Furthermore, some authors believe the articular crack to be at least in part responsible for the therapeutic benefits derived from spinal manipulative therapy. Although some research has been directed towards the investigation of some aspects of this phenomenon, little research has be conducted in order to establish from which side and vertebral level the audible release occurs during the manipulative process.

Objective: To assess the reliability and accuracy of multiple surface mounted microphones to detect the audible release of the target joint during manipulation of the third metacarpophalangeal joint.

Design: Observational study.

Setting: Private practice of chiropractic, Ringwood, Victoria, Australia.

Participants: Twenty volunteers recruited from staff and patients of the private practice of chiropractic.

Method: Eight omnidirectional microphones were affixed to the palmar surface of the hand. Microphone No.1 was positioned directly over the third metacarpophalangeal joint while the remaining microphones were arranged in a uniform pattern over the palmar surface of the hand. Manipulation in the form of long axis traction was then applied to the third metacarpophalangeal joint. Where an audible release was associated with the manipulation the resultant signals were captured via computer and stored for later analysis.

Main Outcome Measure: A difference of greater than one volt in peak amplitude between the microphone positioned over the target joint and the other microphones. The student's t-test was then applied to the data in order to determine if the mean output of the target joint microphone was statistically different to the mean output of the other microphones.

Results: A total of eighteen manipulations resulted in nineteen audible release signals. The mean voltage of channel 1 was consistently greater than all the other channels in this group of subjects. This difference was statistically significant for all the channels.

Conclusion: This research suggests that multiple surface mounted microphones are capable of consistently detecting the audible release from the target joint, with manipulation directed to the third MCP joint. It is hoped that this method will be able to be applied to the audible release associated with spinal manipulative therapy and a better understanding of the manipulative process will ensue.

This abstract is reproduced with the permission of the publisher. Click the above link for free full text.


 

   Text (Citation) Tagged (Export) Excel
 
Email To
Subject
 Message
Format
HTML Text     Excel



To use this feature you must register a personal account in My ICL. Registration is free! In My ICL you can save your ICL searches in My Searches, and you can save search results in My Collections. Be sure to use the Held Citations feature to collect citations from an entire search session. Read more search tips.

Sign Into Existing My ICL Account    |    Register A New My ICL Account
Search Tips
  • Enclose phrases in "quotation marks".  Examples: "low back pain", "evidence-based"
  • Retrieve all forms of a word with an asterisk*, also called a wildcard or truncation.  Example: chiropract* retrieves chiropractic, chiropractor, chiropractors
  • Register an account in My ICL to save search histories (My Searches) and collections of records (My Collections)
Advanced Search Tips