Prevalence of Postural Abnormalities in Dialysis Patients

The goal of this observational study is to investigate and compare the prevalence of forward head , hyper kyphosis and balance in hemodialysis and peritoneal dialysis patients. The main questions it mains to answer are: What is the prevalence of forward head posture in hemodialysis and peritoneal dialysis patients? What is the prevalence of hyper kyphosis in hemodialysis and peritoneal dialysis patients? Is there any relation between postural abnormalities and physical function in hemodialysis and peritoneal dialysis patients? Participants will answer 2 questionnaires and will do some functional tests.