Clip less pedal issues:

[currystomper]

I'm wife has had trouble unclipping from pedals as she can't rotate her heels outwards very much. It seem we have fixed this by getting her new stiffer shoes. I hope this helps anyone else who has problems unclippping

 

[T.M.H.N.E.T]

Either, release the spring tension on the back or swap to SPD and Shimano SH56 cleats - those release in any direction not just heel out

 

[mickle]

The 'mistake' she's making is in trying to achieve cleat release through ankle turning alone. She'll find it much easier to think of it as pushing her whole leg away from the bike, leading with the ankle - and letting her toes sort of follow behind at the point that her foot reaches the release angle.