mtbc | Improved backache

I have long suffered from occasional lower back pain that has taught me to be careful when lifting and similar; spinal degeneration runs in my father's family. I have been told that increasing my core strength would help. I haven't been using the cross-trainer in the best ways for targeting core muscles but I also haven't had any episodes of back pain for some time now, except briefly after I have slept on my front, so perhaps my exercise has already been helping my back.

Update: I am told that my having lost plenty of weight may also much help my back.