Which of the following is the indication for using goniometer?

Goniometer is used for measuring urethrovesical angle during Q-tip test for urinary incontinence. Q-Tip Test: If a urethra is poorly suppoed, it may display hypermobility during increases in intraabdominal pressures. To assess mobility, a clinician places the soft end of a cotton swab into the urethra to the urethrovesical junction. Failure to inse the swab to this depth typically leads to errors in assessment of urethrovesical junction suppo. Following local anaesthesia, a Valsalva maneuver is prompted, and the swab-excursion angle at rest and with Valsalva maneuver is measured with a goniometer or standard protractor. An excursion angle from rest and with Valsalva maneuver that measures >30 degrees above the horizontal plane indicates urethral hypermobility. Ref: Hoffman B.L., Schorge J.O., Schaffer J.I., Halvorson L.M., Bradshaw K.D., Cunningham F.G., Calver L.E. (2012). Chapter 23. Urinary Incontinence. In B.L. Hoffman, J.O. Schorge, J.I. Schaffer, L.M. Halvorson, K.D. Bradshaw, F.G. Cunningham, L.E. Calver (Eds), Williams Gynecology, 2e.