Document Detail


Low-frequency magnetic field technology: quantifying spinal range of motion.
MedLine Citation:
PMID:  2730309     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Reliability of a sensitive, noninvasive technique for quantifying spinal range of motion was assessed by investigators who measured lumbar mobility of 19 subjects with no history of low-back pain or spinal abnormalities. The measurement method used low-frequency, quasistatic magnetic dipole field and sensors which disturb this field in a precisely quantifiable manner. Sensors, affixed to the skin over T12 to L1 interspace and over the sacrum at the level of S1, were directly interfaced with an IBM PC-AT microcomputer, which was used for error-free collection and storage of data. Measurement results compared favorably to those obtained from the biplanar radiographic technique. Statistical analysis showed an extremely high degree of intraobserver and interobserver reliability. Additional advantages included simplicity and noninvasiveness. Overall, the magnetic field technique proved a significant advancement in clinically quantifying spinal mobility, allowing precise determination of impairment under American Medical Association guidelines.
Authors:
M L Cohn; A F Machado; S J Cohn
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of physical medicine and rehabilitation     Volume:  70     ISSN:  0003-9993     ISO Abbreviation:  Arch Phys Med Rehabil     Publication Date:  1989 Jun 
Date Detail:
Created Date:  1989-07-07     Completed Date:  1989-07-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  2985158R     Medline TA:  Arch Phys Med Rehabil     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  455-7     Citation Subset:  AIM; IM    
Affiliation:
Surf Medical Center, Torrance, CA 90505.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Female
Humans
Lumbar Vertebrae / physiology*
Magnetics*
Male
Middle Aged
Movement
Reference Values

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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