I've searched assorted key phrases, but haven't found anything that applies to my specific situation.
An adult woman, trying to keep my young male protagonist from running away, grabs him by both arms. They are facing each other. He stomps on her foot as hard as he can, causing her enough pain that she loosens her grip and he gets away. The boy is 5'1" and 90 pounds, and the woman is around 5'10" and muscular (I haven't figured out her weight yet). She is wearing serviceable flat shoes, and he is wearing sandals.
Would it be physically possible for this to break any bones in her foot, or would it just hurt a lot?
Edit: Wow, my inbox exploded with comments this morning! Thank you all so much for your help!