Meadow is 16 years old and presents with a 3 month history of intermittent right knee pain. Paracetamol is some help. She is a keen netball player playing several times a week and cannot recall any obvious injury. The pain often flares up after matches and ice packs are some help. On examination there is no knee swelling and her range of movement and ligamental tests are intact. She is tender over the tibial tuberosity.
Based on the likely diagnosis, how should you investigate her symptoms?