| Segmental percentage contributions of cervical spine during different motion ranges of flexion and extension. | |
| | |
MedLine Citation:
|
PMID: 20068468 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
STUDY DESIGN: A blind, repeated-measure design was employed in the study. OBJECTIVE: To quantitatively measure the percentage contribution of segmental angular motion during different motion ranges of cervical flexion-extension for clinical applications and better understanding of cervical biomechanics. SUMMARY OF BACKGROUND DATA: Restriction of cervical motion is a major symptom in patients suffering from neck injuries or pathologies. Although segmental angular motion alternation is a criterion for the detection of neck related impairments, the percentage contribution throughout cervical movements is not well understood. METHODS: A total of 384 image sequences during cervical flexion-extension obtained from 48 healthy adult subjects were analyzed with a precise image protocol using dynamic videofluoroscopic techniques. RESULTS: The middle cervical spines demonstrated significantly greater angular percentage contributions at C3/4 (29.89%) and C4/5 (37.14%) angles during the initial 1/3 flexion movement; whereas the lower cervical spines revealed statistically greater angular contributions (C5/6: 22.57% to 29.45%; C6/7: 28.80% to 37.42%) from the middle to final 1/3 ranges of flexion movement (P<0.001). With regard to cervical extension motion, the majority of segmental percentage contributions statistically shifted initially from C5/6 level (30.21%) to C4/5 (24.96%) and C5/6 (26.12%) levels, and finally to the C3/4 (27.55%) and C4/5 (29.77%) segments (P<0.001). CONCLUSIONS: The segmental percentage contributions in this study might imply that the cervical flexion movement initially relied more on the middle cervical segments and later on the lower ones, whereas a motion pattern trend from lower to middle segments was observed during cervical extension. |
| | |
Authors:
|
Shyi-Kuen Wu; Li-Chieh Kuo; Haw-Chang H Lan; Sen-Wei Tsai; Fong-Chin Su |
Related Documents
:
|
17605678 - Use of prestige lp artificial cervical disc in the spine. 20622748 - Influence of number of operated levels and postoperative time on active range of motion... 15029938 - Assessment of lumbar spine kinematics using dynamic mri: a proposed mechanism of sagitt... 16971158 - Wireless orientation sensors: their suitability to measure head movement for neck pain ... 3716218 - Three cone mechanisms in the primate electroretinogram: two with, one without off-cente... 19128628 - Evaluation of nasal obstruction with odiosoft-rhino in nasal septal deviation. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Journal of spinal disorders & techniques Volume: 23 ISSN: 1539-2465 ISO Abbreviation: J Spinal Disord Tech Publication Date: 2010 Jun |
Date Detail:
|
Created Date: 2010-06-07 Completed Date: 2010-09-03 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101140323 Medline TA: J Spinal Disord Tech Country: United States |
Other Details:
|
Languages: eng Pagination: 278-84 Citation Subset: IM |
Affiliation:
|
Department of Physical Therapy, HungKuang University, Taichung, Taiwan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Analysis of Variance Biomechanics / physiology Cervical Vertebrae / physiology* Female Fluoroscopy Humans Male Movement / physiology* Range of Motion, Articular / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Mechanism, Glasgow Coma Scale, Age, and Arterial Pressure (MGAP): A new simple prehospital triage sc...
Next Document: Analysis of the Relationship Between Facet Joint Angle Orientation and Lumbar Spine Canal Diameter W...