Trampoline-Induced Changes in Pelvic Structure and Continence

Participants will undergo a standardized 10-minute high-intensity trampoline jumping protocol designed to elicit mechanical loading on the pelvic floor. Prior to the jumping session, bladder volume will be assessed via transabdominal ultrasound. If a participant's bladder contains less than 100 mL of urine, they will be asked to drink water and wait until a target range of 100-200 mL is reached to ensure consistent pre-jump bladder filling across participants. This approach minimizes variability in bladder volume, which could influence pelvic floor measurements.