Some observations...
- The uptilt of the saddle may discourage her from rotating her pelvis forward (imagine the pelvis is a bowl filled with water tilting forward so water spill forward) thus forcing a rotation elsewhere (the spine?) to compensate
- Women generally have longer legs and shorter torsos than men of the same height. So bikes designed for men often have a longer reach to the bars than women are comfortable with. That stems already pretty short but maybe a shorter one may help.
- Does she wear a helmet with a visor? That may force her to tilt head up to see. Try removing the visor.
- I wonder if there are any cyclist/doctors in your area that can help?
- She should get a custom bike fit and then compare the results to her current bike.
Best of luck to your friend.
Last edited by john m flores; 04-11-19 at 12:26 PM.