Top 8 Best Low-Impact Cardio Exercise Machines for Bad Knees
But having a bad knee doesn't mean you can do regular cardio exercise. With a piece of low-impact exercise equipment, you will also get all the benefits of cardio exercises without knee pain. In a hurry? Here are our top 8 picks of the best cardio exercise machines for bad knees: Marcy Recumbent Exercise Bike ME-709; Schwinn Recumbent Bike 100515