Index to Chiropractic Literature
Index to Chiropractic Literature
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Index to Chiropractic LiteratureIndex to Chiropractic LiteratureIndex to Chiropractic Literature
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ID 10595
  Title Skin accelerometer displacement and relative bone movement of adjacent vertebrae in response to chiropractic percussion thrusts
URL https://www.ncbi.nlm.nih.gov/pubmed/2926284
Journal J Manipulative Physiol Ther. 1989 Feb;12(1):26-37
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

The authors studied relative bone movements in response to manipulative light taps to the spine. Piezoelectric accelerometers attached to bone of an anesthetized dog measured transverse, X-Z plane, movements of L2-L3 adjacent vertebrae while percussion thrusts of an instrument used for manipulation made inputs three vertebrae above and five vertebrae below the L2-L3 joint interface. Small, relative 1-mm translations and 0.5 degree rotations occurred during the first 19 msec. When one set of accelerometers were stabilized on the skin surface, half of the skin-bone translation maxima erred less than 2%. However, skin translations averaged 77% (SD = 2%) of bone translations and skin rotations averaged 95% (SD = 26%) of bone rotations. The results suggest the possibility that, with further development, piezoelectric accelerometers can be a noninvasive tool to study dynamic, relative, bone movement.

This abstract is reproduced with the permission of the publisher. Article only available in print.

 
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