Abstract Background Central sensitization has recently been documented in patients with knee osteoarthritis (OAk). So far. the presence of central sensitization has not been considered as a confounding factor in studies assessing the pain inhibitory effect of tens on osteoarthritis of the knee. The purpose of this study is to explore the pain inhibitory effect of burst tens in OAk pat... https://megavitamines.shop/product-category/shark-cartilage/