Dear Mel, thank you for your advice with the metacrawler, but there were no useful results. Most of them were addresses of physiotherapists or clinics who offer Schlingentisch-Therapy. Pubmed only offered me 4 citations for <sling traction bed>, but none is relating to the student's theme >The following site gives you information on a book entitled "Schlingentisch" >(Aufhängungen - Übungen - Krankheitsbilder) by Katzki, Detlef & Müller, >Michael - is this the book that you own? I didn't know about this book, the book I mentioned is by Werner Wenk and also called <Schlingentisch>. Of course I can tell the student to buy that book, there is a chapter for the use of the Schlingentisch for coxarthrosis, but I would have liked to find some recent studies. Is this kind of therapy unknown in the USA? Thank you for your help. Hedi Binder %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%