1 doctor weighed in:

How useful are sit ups for toning the lower abs?

1 doctor weighed in
Dr. Ed Friedlander
Pathology

In brief: Not very

Read a few good articles on exercises that involve raising the legs while exercising the abs.
Situps target mostly the upper abs. A few resistance variants, mostly involving pulling cables with the feet, are best done by people who are really good at using machines. Protect your lower back when you're doing all of these.

In brief: Not very

Read a few good articles on exercises that involve raising the legs while exercising the abs.
Situps target mostly the upper abs. A few resistance variants, mostly involving pulling cables with the feet, are best done by people who are really good at using machines. Protect your lower back when you're doing all of these.
Dr. Ed Friedlander
Dr. Ed Friedlander
Thank
Read more answers from doctors