BackgroundThe etiology of pelvic support defects is doubtless complex. Although various factors including connective tissue collagen, striated muscle, and innervation of both striated and smooth muscle have been implicated, lifestyle appears to play an important role.PatientsNine nulliparous airborne trainees with urinary incontinence are reported. All patients reported minimal or no incontinence before airborne training, but had severe urinary incontinence after the rigors of airborne training.ConclusionThis report suggests that pelvic support defects and/or stress urinary incontinence can be precipitated by an isolated traumatic event.