Hi Joe,
>From what I am told by Aileen (who has done about 30 years work using the
psoas), the cold spray is suppose to have an impact on the psoas muscle
itself through something called the musculo-cutaneous reflex. I am still
looking around for what exactly this reflex does, but from what I am told,
it basically helps to increase blood flow to the muscle. Whether this cold
spray affects the nerves, blood supply or the muscle it self I am not sure.
But I can definitely tell you that it is not placebo... a physio in Brisbane
did a standardized clinical trial whereby they had 10 patients with their
first acute onset of back pain with active psoas problems, and stretched and
sprayed 5 patients, while simply stretched the other 5. The 5 that they
stretched and sprayed was ~60% better (subjectively) and went from unable to
bend forwards to been able to touch their toes in the first session (yes,
all 5 patients). The other 5 patients ~30% better (subjectively) but the
pain still restricted their lumbar movement. From my own experience, the
cold definitely does work... but I agree, more research is needed for it to
be understood.
Even though I practice this simple technique, I am always skeptical but at
the same time open minded and and this is why I like this technique to be
openly criticized. It is probably the simplicity of Aileen Jefferis theory
on the psoas that is continually "blowing me away."
Henry***
>Hi: Henry Tsao wrote" I actually palpate, and stretch and spray the psoas
>muscle from the
>abdomine" What is the physiologic basis for the coolant effect on the
>Psoas?
>Is it the innervations level? The Abdominal wall is not L2-3(Check the
>anatomy books). Is it via reducing "C" fiber sensitivity? Changes in
>referred pain patterns? Counter irritation? Reduced Secondary hyper
>aesthesia? Placebo ? All of the above? Why not diathermy which, when not
>contraindicated, is at least likely to penetrate deep enough.
>
> >I'm glad to hear that palpation is still an honorable practice. However,
>while techniques work in mysterious ways, they are not applicable to all
>patients. (Bobath technique, for instance, may help a given individual, but
>the theory is all but, or should, be abandoned.) It is wonderful to listen
>in to the exchanges re therapeutic intervention but the simplicity is
>disturbing.
>Joe
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