Index to Chiropractic Literature
Index to Chiropractic Literature
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Wednesday, December 4, 2024
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ID 8781
  Title Power spectral and microvector frequency analysis of dynamic standing foot force patterns in a normal male subject [case report]
URL https://www.ncbi.nlm.nih.gov/pubmed/2212881
Journal J Manipulative Physiol Ther. 1990 Sep;13(7):361-369
Author(s)
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Peer Review Yes
Publication Type Case Report
Abstract/Notes

Power spectral and microvector frequency analyses of dynamic standing foot force patterns in a normal male subject were performed using a multiple-trial experimental protocol. Power spectral analysis of eight eyes-open vs. eyes-closed 50-sec trials revealed significant power increases in the 0.14 to 0.66 Hz range with eye closure, which were repeatable in trials performed on the same subject 2 wk later. Since power spectral differences are difficult to interpret biomechanically, a (micro)vector analysis of 1/20 sec changes in proportional weight transfer was employed. This methodology was able to reveal that foot force weight transfer exhibited a distinct preferred directionality, and that the eyes-closed condition was characterized by significant increases in both the occurrence and average magnitudes of these preferred microvectors.

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

 
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