I’ve heard this is due to having weak abdominals compared to your lower back. This makes sense considering that I do heavy deadlifts, bent over rows, squats, and other exercises that have made my lower back fairly strong. I also tend to neglect abs since I’m at a higher body fat and never felt too motivated to work them until I recognized this problem.
What can I do to correct this? I’m not too concerned about looks or ab definition, but I obviously need to correct a strength imbalance. Is there a loaded exercise I can do with low reps to build ab strength?
How is your hip flexor range or motion? A lot of people with lordosis have very tight Rectus Femoris, and iliopsoas muscles.
Try performing this stretch (you can put your back foot on an exercise ball, a bench, your couch, basically any raised surface and you don’t have to raise your arm like in the picture). Ideally you should be able to get your foot to your butt (or at least calf to hamstring), and your femur in line with your torso.
Most people with lordosis that I’ve encountered (and honestly a lot of people who don’t show serious signs of lordosis), can’t even come close to getting their femur in line with their torso, they almost always try to make up for the lack of mobility there by arching their lower back to attempt to “sit up” more straight during the stretch.
If this isn’t the problem, then yeah the problem might be weak abdominals. Do you do any ab work at the moment?