Hi Jilly,
I trained in the u.s. in neuromuscular therapy - a well defined method for treating trigger points that utilises ischaemic compression as one of the soft-tissue techniques. It works very well, but like much of physio, is poorly researched.
You may want to use 'neuromuscular therapy' or 'nmt' as search terms on google.
Authors on the subject include the classic works by Travell & Simons, and newer texts by Leon Chaitow & Judith Walker DeLany.
Look for papers by David Simons, e.g. in the J. of Bodywork & Movement Therapies.
Finally, take a look at the papers by Chan Gunn on trigger points and myofascial pain. I now use his techniwue of dry-needling (Intramuscular Stimulation) to treat TP's.
Hope this helps.
Cris[/i]