As you state the leakages seem to occur when your daughter moves around, this sounds like she could be struggling with stress incontinence. Could you ask your daughter if she leaks when pressure is put on the bladder, such as during exercise or lifting?
Does your daughter smoke or have a chronic cough? Smoking causes a persistent cough, which can lead to leakages over time. Similarly, if your daughter is doing heavy weights regularly, the pressure that is put on the bladder can gradually cause incontinence and weaken the muscles.
Often, hormone deficiency can cause incontinence, which a Doctor can diagnose and help her with. It is important your daughter visits a Doctor to establish whether there are any underlying health conditions, such as Diabetes or a nerve disorder. Although it seems embarrassing, Doctors hear about this on a regular basis.
Could you please ask your daughter about her symptoms to find out which type of incontinence she is experiencing? I can then suggest some potential causes.