Nevner at kronisk bentente ledd mister reaksjonsevnen på nerveimpulser og blodsirkulasjon. Kunne trengt å lese hele denne studien.

http://www.sciencedirect.com/science/article/pii/0304394094900027

«In control knees, nerve stimulation produced a frequency-dependent vasoconstruction»

«Chronically inflamed joints showed virtually no response to either nerve stimulation or SP application, suggesting a radical alteration in sympathetic and neuropeptidergic actions.»