Subjects were asked to perform a unilateral hop landing task.
To orient participants with the task, each subject was asked to perform 3 to 5 practice trials of the task. Once subjects were comfortable with the task, they were asked to perform 3 test trials landing onto their right (dominant in all cases) leg for the control group and both symptomatic and asymptomatic legs for the PFP group. The hop landing task involved the subject hopping off a 30 cm high bench landing with the same leg onto a mark 30 cm from the bench and holding the position on landing for 3 s. While carrying out the task perceived pain was recorded (scored after completion) by the participant marking perceived pain level on a 10 cm visual pain scale (0 equals no pain, 10 worse perceivable pain