“…Total knee replacement (TKR) surgery is the gold-standard treatment to deal with severe knee OA when pain is no longer relieved by conservative treatments(Malviya et al, 2009, Ferket et al, 2017a. Thus, the expected goals of TKR surgery are reducing pain and improving the quality of life(Malviya et al, 2009, Ferket et al, 2017a, Tambascia et al, 2016.In Hungary, pain and PA after TKR were evaluated only once using the SF-36 questionnaire(Rádler et al, 2018).days (Edwardson et al, 2017, Lyden et al, 2017, Dahlgren et al, 2010, Taraldsen et al, 2011, Ryan et al, 2006). The ActivPAL is recommended to be used with the elderly more than other monitors such as ActiGraph because it has a higher validity and reliability to detect body movement at different speeds than ActiGraph (Kim et al, 2015, Ryan et al, 2006).…”