Appendix A.

Combinations of keywords for searches in varied Databases.

Combinations of keywords
(“Patellofemoral Pain Syndrome” OR “Anterior Knee Pain”) AND (“Muscle Strength” OR “Muscle Endurance”)	85	8	8	40	43
					44
(“Hip” OR “Muscle Strength” OR “Muscle Endurance”) AND (“Patellofemoral Pain Syndrome” OR “Anterior Knee Pain”)	195	0	0	73	45
					46
(“Patellofemoral Pain Syndrome” OR “Anterior Knee Pain”) AND (“Muscle Strength” OR “Muscle Endurance”) AND “Hip”	40	0	0	22	47
					48
					49
(“Hip” OR “Muscle Strength” OR “Muscle Endurance” OR “Muscle Endurance”) AND (“Patellofemoral Pain Syndrome” OR “Anterior Knee Pain”) AND “Female”	146	0	0	21	50
					51
					52
(“Hip” AND “Muscle Strength” OR “Muscle Endurance”) AND (“Patellofemoral Pain Syndrome” OR “Anterior Knee Pain”) AND “Female”	39	0	0	9
Total	505	8	8	165