Index to Chiropractic Literature
Index to Chiropractic Literature
My ICL     Sign In
Tuesday, May 26, 2020
Index to Chiropractic LiteratureIndex to Chiropractic LiteratureIndex to Chiropractic Literature

ICL Home

For best results switch to Advanced Search.
Article Detail
Return to Search Results
ID 20237
  Title Undershooting of a neutral reference position by asymptomatic subjects after cervical motion in the sagittal plane
Journal J Manipulative Physiol Ther. 2008 Sep;31(7):547-552
Peer Review Yes
Publication Type Article
Abstract/Notes OBJECTIVE: The objective of this study was to determine if blindfolded, asymptomatic subjects undershoot or overshoot a self-selected neutral reference position (NRP) when performing a full-cycle, head repositioning accuracy test in the sagittal plane.

METHODS: An asymptomatic group of subjects, consisting of 7 men and 5 women with no history of head and neck pain, were recruited for the study. Subjects, performing a full-cycle series of head/neck movements in the sagittal plane, attempted to return to a self-selected NRP, defined at the beginning of the movement sequence, without benefit of visual clues. Data were collected for each subject, and repositioning errors were calculated. The sign of the error was used to determine if undershooting or overshooting of the NRP had occurred.

RESULTS: Subjects undershot a self-selected NRP at statistically significant levels (P < .01) when performing the head repositioning accuracy test while blindfolded. Subjects undershot the NRP 83% of the time when moving from flexion to the NRP and undershot the NRP 92% of the time when moving from extension to the NRP. A Fisher exact test showed no significant difference between the number of times subjects undershot the NRP when moving from either flexion to the NRP or from extension to the NRP. To our knowledge, neither undershooting nor overshooting of an NRP has previously been reported for asymptomatic subjects at statistically significant levels.

CONCLUSION: Knowing that asymptomatic subjects undershoot an NRP may help to direct treatment and rehabilitation of patients who have experienced whiplash-type injuries and are shown to overshoot the NRP when performing the same test.

Click on the above link for the PubMed record for this article; full text by subscription. This abstract is reproduced with the permission of the publisher.

   Text (Citation) Tagged (Export) Excel
Email To
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