Have you talked to your doctor about getting clearance for exercise? I would be very hesitant to advise anyone who has chronic pain, as the cause could be something other than just weak muscles. Most back pain has different origins, from injury or poor posture - finding out what's causing yours is important, because you don't want to make it worse!
If it IS something that can be resolved with exercise, you can ask your doc for a referral to a physical therapist who can design a program to meet your needs, without risking further injury.
Writer, mother, wife, and breadwinner. I love to run, but running doesn't love me, so I'm switching to my low-impact bike.
I'm not pregnant, just fat: My blog. fatnotpregnant.blogspot.com/
| current weight: 186.4