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Evidence-Based Complementary and Alternative Medicine
Volume 2012 (2012), Article ID 353916, 8 pages
http://dx.doi.org/10.1155/2012/353916
Research Article

Remote Subcutaneous Needling to Suppress the Irritability of Myofascial Trigger Spots: An Experimental Study in Rabbits

1FSN Institute, Nanjing University of Chinese Medicine, Nanjing 210029, China
2Department of Physical Therapy and Graduate Institute of Rehabilitation Science, China Medical University, Taichung 40402, Taiwan
3Department of Physical Therapy, Hungkuang University, Taichung 43302, Taiwan
4Department of Physical Medicine and Rehabilitation, Yangming Branch, Taipei City Hospital, Taipei 11146, Taiwan
5Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei 11221, Taiwan
6School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
7Department of Physical Medicine and Rehabilitation, China Medical University Hospital, 2 Yuh-Der Road, Taichung 40447, Taiwan

Received 26 July 2012; Accepted 20 November 2012

Academic Editor: José M. Climent Barberá

Copyright © 2012 Zhonghua Fu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. To obtain electrophysiological effects of Fu’s subcutaneous needling (FSN) on needling distance by assessment of endplate noise (EPN) recorded from the myofascial trigger spots (MTrSs) in rabbit skeletal muscle. Method. Eighteen New Zealand rabbits weighing 2.5–3.0 kg were randomly divided into two groups as follows: proximal needling (PN) group and distal needling (DN) group. The needling procedure followed the instructions described by the inventor of FSN, including needling insertion and swaying movement. The amplitudes of EPN on the MTrS region of BF muscle were recorded as an index of MTrS irritability. Random sampling of EPN tracings were taken for further analyses before, during, and after FSN treatment. Results. In PN and DN groups, the trends of EPN amplitude alterations were similar at conditions before, during, and after FSN treatment. The degree of reduction in the EPN amplitude in PN group was significantly higher than that in DN group. There were no significant changes in EPN amplitudes in the MTrS of contralateral BF without FSN intervention either in DN or PN group. Conclusion. The irritability of proximal MTrSs could be modulated after ipsilateral FSNs. The placement of FSN may affect the effectiveness of suppression of irritability of MTrSs.