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. 2009 Feb 5;10:17. doi: 10.1186/1471-2474-10-17

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Copyright © 2009 Makhsous et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Average changes (in percentage, Mean ± SE) of surface EMG from the back muscles induced by sitting posture change from Normal to Off-Loading posture for both Asymptomatic and LBP subjects. A. Left side; B. Right side.