Hi Diane.I also am an incomplete C4-C5 and my injury was in 2007, so it is been five years now. After the first year I also walked with a walker, but have graduated to two canes. I try to exercise every day for one to three hours. It has paid off for me as I'm still seeing small improvements even after five years. Don't believe that you can't improve after a year or two. I walk up to a mile and a half on the canes. I also have a recumbent bike and treadmill. I get in the pool once a week and do many exercises in the water. I find I can walk in 3-4 feet of water with no canes and that is good exercise. I do need help to accomplish all of this and am lucky to have it. Try to keep him motivated and keep him moving. He will improve!