I am the original poster of this video clip and I would like to sincerely thank each and every one of you for your comments.
I have learned a lot just from monitoring the lively discussion.
There seems to be some question whether the defender made a movement toward the dribbler prior to contact. My thought at the game was that she had.
I have no idea whether this will help but the original video was shot at 60 frames per second. Here is a frame of the clip immediately prior to contact. It again appears to me that the defender is leaning toward the dribbler (as in moving toward the dribbler) with her shoulder and the side of her body.