This study shows that hard running and jumping can cause the uterus and bladder to drop temporarily, releasing urine. If you have this problem, empty your bladder before you exercise. You're not likely to accumulate much additional urine during exercise. You can also practice Kegel exercises, in which you alternately contract and relax the vaginal muscles. Also, wear a minipad.
Average loss is less than two teaspoons.
If conservative measures do not help, you may need an operation in which the uterus and bladder are raised to their normal position. I'm Dr. Gabe Mirkin on Fitness. E Nygaard, FL Thompson, SL Svengalis, JP Albright. Urinary incontinence in elite nulliparous athletes. Dr. Mirkin's opinions and the references cited are for information only, and are not intended to diagnose or prescribe.