The LILA study is a pilot randomized parallel-group trial of a group-based yoga therapy program versus physical conditionin control program for treatment of urinary incontinence in ambulatory middle-aged and older women. Women aged 50 years and older who meet the criteria for frequency of incontinence episodes, are not using other clinical treatments for incontinence, and meet minimum physical mobility requirements and other eligibility criteria will be recruited from the general San Francisco Bay Area.