Andrew Kowalski, MD FASN I have been an advocate for exercise among CKD patients for a long time. Fortunately, there have been numerous publications showing significant benefit among CKD patients. From numerous cardiovascular benefits to evidence that it can help lower chronic inflammation and delay CKD progression. I was excited to see another study looking at physical activity and preserving kidney function. The RENIS study from Tromsø, Northern Norway , asked a clinically