Note that you should only move the legs in one direction. (checkpregnancy.com)
A foot pedal, for example, is not as good as a mouse for text editing, because you can't move your legs as accurately as your hands and fingers. (nngroup.com)
The pain was so intense in my lower back, and it started wrapping around my hips so much so I felt like I couldn't move my legs to walk. (imtotallyfakingit.com)