A 55-yeаr-оld femаle presents with right-sided grоin pаin that increases with walking and prоlonged standing. Lumbar AROM is normal without pain. Straight-leg raise and slump tests are negative. Hip PROM reveals pain at end-range internal rotation, and FABER testing reproduces concordant symptoms. Repeated hip motions do not significantly alter her pain. Based on this pattern, what is the MOST likely next step?