SLIMM Intervention: The goal of the SLIMM intervention is to increase the time spent on light activities (Light physical activity is defined as 500-2019 counts/minute). This intervention will only be completed by individuals in the CKD and non-CKD groups. At week 6 of the intervention participants will be instructed to perform 5 minutes of light activity for each 25 minutes of sitting time. At week 12, participants will be instructed to further increase their light activity to a goal of 10 minutes for each 20 minute of sitting time. Thus, the goal is to replace total sedentary time by increase in light activities by 15% in 6 weeks and 33% by the end of the intervention.