I've been trying to find a routine for abs to do at home, but haven't been able to find many exercises that don't cause strain on my lower back. Back problems run in my family, so I want to be a little cautious. I started with the common exercises like crunches or leg lifts but was feeling it in my back more than in my abs. I even tried sticking a pillow underneath me (Scott's "Ab Pillow" trick), but it didn't help. Any suggestions would be appreciated!
Background info about me for context: I'm pretty new to all this. I know the importance of properly exercising the core, but when I got started, I was deterred by the strain on my lower back.