Randomized-controlled study of end stage renal disease patients between the age of 18 and 90 years to assess the effect of exercise on arterial stiffness. Our aim is to have 23 patients in both groups. The study period will be 24 weeks—4 weeks for recruitment, 16 weeks for the intervention and 4 weeks for data collection and analysis. The protocol will be submitted to the MUHC Research Ethics Board.