Polish massagists applied electric shock in an evidence-based study, and find the results prove the tensegrity model of the human body and its applicability to massage therapy models. They write in their abstract:
Based on a tensegrity principle, direct or indirect connections between fascia or muscles which stretch the aponeurosis or intermuscular septum may allow the transfer of tension over long distances, without loss of muscle force produced during rest and activity. The present study aimed to test an effect of massage on electrical (EMG) and mechanical (MMG) activities of a muscle lying distant, but indirectly connected to, the massaged muscle. Thirty-three healthy men participated in the study. To record the activity of the middle deltoid muscle the brachioradialis was massaged, and for the tensor fasciae latae-the peroneal muscles were massaged. An EMG/MMG hybrid probe was used to detect EMG and MMG signals from the middle deltoid and tensor fasciae latae muscles. The EMG amplitude increased during massage in the tensor fasciae lata only, while the MMG amplitude increased significantly in both muscles.
The study concludes that there was an electrical as well as a mechanical response of muscle connected indirectly by structural elements with the muscle being massaged indicating an application for the tensegrity principle in massage therapy. It also has a practical importance, because it provides a means for a physiotherapist to influence adverse muscle tension by massaging another distant muscle.
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Reference:
Tensegrity principle in massage demonstrated by electro- and mechanomyography. By Kassolik K, Jaskólska A, Kisiel-Sajewicz K, Marusiak J, Kawczyński A, Jaskólski A. In Department of Physiotherapy, University School of Physical Education, Faculty of Physiotherapy, 51-612 Wrocław, al. Paderewskiego 35/p-4, Poland.
Photos courtesy of this terrific anatomy lesson site: http://home.comcast.net/~wnor/soleoffoot.htm, ©1999 by Wesley Norman, PhD, DSc
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