Index to Chiropractic Literature
Index to Chiropractic Literature
My ICL     Sign In
Friday, April 19, 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 14659
  Title Standardized initial head position in cervical range-of-motion assessment: reliability and error analysis
URL http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=10658872
Journal J Manipulative Physiol Ther. 2000 Jan;23(1):20-26
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes OBJECTIVE: To assess the clinical reliability and precision of the OSI CA-6000 Spinal Motion Analyzer for measurement of range of motion in cervical spines of pain-free subjects by using a novel procedure designed to minimize variability and quantitatively evaluate sources of errors.

METHODS: Twenty asymptomatic volunteer subjects were evaluated twice by each of two trained examiners in one session. Subject position was carefully standardized. Rotation, lateral bending, and flexion-extension were evaluated in repeated movements (cycles) from extreme to extreme.

ANALYSIS: Descriptive statistics and reliability coefficients (interclass correlation coefficients [ICCs]) were calculated for all full- and half-cycle motions. Possible sources of systematic errors were evaluated, and random errors were estimated.

RESULTS: ICCs indicate that the instrument performs very reliably for rotation and lateral bending (0.93-0.97) and acceptably for flexion-extension (0.75-0.93) measurements. Differences in instrument placement, subject posture, or both in different trials correlate neither with differences in measured values nor with variances. Within-trial errors did not correlate with ranges of motion. Standardizing head position resulted in increases in reliability of from 3% to 15% for axial rotation and lateral bending but actually decreased the ICCs for flexion-extension (up to 14%) compared with data collected under a less-stringent protocol. Errors in clinical use are estimated at 4.5 degrees.

CONCLUSIONS: By using our modifications to the accessories and standardization of subject position, the CA-6000 is a highly precise and reliable instrument for measuring active cervical motion about the 3 Cartesian axes. Individuals can repeat the same patterns of motion in sequential trials on the same day with very little variation. Ease of repetitious measurement without examiner intervention contributes to the instrument's ability to obtain highly reliable data. Changes in instrument placement or subject body posture between trials do not give rise to systematic errors. Design of the instrument for flexion-extension could be improved.

Click on the above link for the PubMed record for this article; full text by subscription.
   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