Table 2

Data collection timeline

		Baseline	Postintervention	6 months	12 months	18 months	24 months
Primary	Visual Analogue Scale	X	X	X	X	X	X
	Anterior Knee Pain Scale	X	X	X	X	X	X
	PFP recurrence			X	X	X	X
Secondary	Hip Rate of Torque Development	X	X
Secondary	Fontal Plane Single Leg Squat Kinematics	X	X	X	X	X	X
Descriptive variables	PROMIS-10	X	X	X	X	X	X
	KOOS w/ PF-subscale	X	X	X	X	X	X
	Fear Avoidance Belief Questionnaire	X	X	X	X	X	X
	Pain Self-Efficacy Questionnaire	X	X	X	X	X	X
	International Physical Activity Questionnaire	X	X	X	X	X	X
	Global Rating of Change		X	X	X	X	X

KOOS, Knee injury and Osteoarthritis Outcome Score; PFP, patellofemoral pain; PROMIS-10, Patient-Reported Outcomes Measurement Information System-10.