http://www.wannabebig.com/training/b...ith-bad-knees/
The first exercise is great for the hip area and upper leg. The second is good for the glutes,
not as good as straight leg deadlifts, but very good, particularly if you work some resistance into it.
http://www.performbetter.com/detail....tegoryID_E_281
The two really wide ones offer a lot of resistance. You can hit most of your body using these.