A dumbbell and stability ball exercise that strengthens quads and core without stressing your knees. You walk out to 90 degrees, grip dumbbells, lower to parallel while pushing into the ball behind your back, then stand up flexing your quads.
Knees hurt when you squat? Try this instead. Grab some dumbbells, put them on the ground. Grab a ball, put it at your lower back. Walk out to 90 degrees. Grab dumbbells. Push into the ball, come down to parallel, hold, and then come up and flex those quads. If you're doing this correctly, you should work your core and your quads at the same time and not have any knee pain.
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