Prolonged sitting behavior, characterized by minimal energy expenditure, poses significant health risks, especially for chronic kidney disease (CKD) patients undergoing hemodialysis. This sedentary behavior can lead to various health complications and a reduced quality of life.This study aims to evaluate the validity and reliability of the Turkish adaptation of the Ottawa Sitting Scale (OSS) in assessing sitting behavior among CKD patients. A total of 130 CKD patients undergoing hemodialysis participated in this cross-sectional study conducted in XXX province between January 2023 and September 2023. The OSS, along with the Physical Activity Scale (FAS), Sitting Behavior Assessment (SBA), and Quality of Life Scale (QOL), was administered. Data analysis involved assessing the internal consistency, factor structure, and concurrent validity of the OSS.
