Adherence to Behavioral interventions for stress incontinence: rates, barriers, and predictors. Borello-France D, et al. PTJ 2013;93(6):757-773.

This one year follow up investigated many different adherence barriers and found the most common variable associated with adherence was "trouble remembering" to do the exercises.  At three months after randomization weaker PFM was associated with drop out.  Understanding barriers to adherence can help in addressing them when they occur and asking patients about them especially the ability to remember to do the exercises.  There are many phone apps which help with reminder indicators.  Check out this blog for more details.  http://pelvicpt.blogspot.com/2013/06/bladder-apps-for-android-and-iphone.html