Your feet can influence the alignment of your spine.
Are you standing equally on your feet? Excerate your standing.
Stand purposely on one leg more than the other. How does this influence your pelvis?
If there was four points on your foot
Two at each side of the ball of the foot
Two at each side of your heel of the foot
Are you standing equally on the four corners of each foot?
How you stand on your feet will influence the work of your legs and your core?
Pulling your abs are not enough to change an anterior tilted pelvis in standing? Improving how you use your legs and feet can improve the tone of your core in standing.