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Paul Clifford
This is a really important question, and a lot more complicated than it first looks! For a long time, I had vague ideas about the nature of "muscle tension" and "muscle tone" -- the terms have to be carefully defined. Some of the physiology I had been taught in school was inaccurate or incomplete.
The firmness to palpation of resting muscle has contractile and non-contractile components. The contractile part relates to activity of myosin and actin and can have several causes (spasm, trigger points, 'holding'). The non-contractile part is due to the different physical substances that make up muscle tissue (water, connective tissue, myofibril, and embedded fat).
There is a concise description of resting muscle tension (resting muscle tone) in:
Andrade CK, Clifford P. Outcome-Based Massage 2nd ed. Baltimore, MD; Lippincott Williams and Wilkins, 2008: 126-128.
Also useful are:
Mense P, Simons DG. Muscle Pain. Philadelphia, PA; Lippincott Williams and Wilkins, 2001:99-112.
Masi AT, Hannon JC, Human resting muscle tone (HRMT): Narrative introduction and modern concepts. Journal of Bodywork and Movement Therapies. 2008;12:320–332.
In light of these readings, your questions become even more interesting! I would say that in most circumstances (including #2 and #3 above) it is a worthwhile goal to make hard muscles more pliable. Spasm is neurologically controlled, and probably can't be affected manually more than minimally. However, it might be possible to increase the pliability of connective tissue associated with a muscle that is spasm -- which might not always be a smart move. Regardless, any local change in hardness of myofascia will have consequences for local muscle performance and for the myofascial 'tensegrity web' which should be considered...the bigger the local change, the bigger the consequences.
Paul
Aug 16, 2010
Megan Lazaruk
Sep 2, 2010
Stephen Jeffrey
" It is also conceivable that TrPs provide a nociceptive barrage to the dorsal horn neurons and facilitate joint hypomobility" .
Helps me understand how scar tissue could also trigger hypomobility via a nociceptive barrage hmmmm interesting.
Clients can turn their ankle time and time again = more scar tissue, more strengthening execises from the physio,.......only when you break the bonds of scar tissue will you restore full function to the joint and stop the nociceptive barrage.
I would really appreciate the groups comments here
http://www.massageprofessionals.com/forum/topics/when-scar-tissue-i...
Thanks
Bodhi Haraldsson said:
Sep 3, 2010