1-Smith BE, Selfe J, Thacker D, Hendrick P, Bateman M, Moffatt F, et al. Incidence and prevalence of patellofemoral pain: A systematic review and meta-analysis. PLoS One. 2018;13(1):e0190892.
2-Rathleff MS, Vicenzino B, Middelkoop M, Graven-Nielsen T, van Linschoten R, Holmich P, et al. Patellofemoral Pain in Adolescence and Adulthood: Same Same, but Different? Sports medicine (Auckland, NZ). 2015;45(11):1489-95.
3-Nejati P, Forogh B, Moeineddin R, Baradaran HR, Nejati M. Patellofemoral pain syndrome in Iranian female athletes. Acta medica Iranica. 2011;49(3):169-72.
4-Powers CM, Bolgla LA, Callaghan MJ, Collins N, Sheehan FT. Patellofemoral pain: proximal, distal, and local factors, 2nd International Research Retreat. The Journal of orthopaedic and sports physical therapy. 2012;42(6):A1-54.
5- Petersen W, Ellermann A, Gosele-Koppenburg A, Best R, Rembitzki IV, Bruggemann GP, et al. Patellofemoral pain syndrome. Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA. 2014;22(10):2264-74.
6-Fagan V, Delahunt E. Patellofemoral pain syndrome: a review on the associated neuromuscular deficits and current treatment options. British journal of sports medicine. 2008;42(10):789-95.
7- Lee SP, Souza RB, Powers CM. The influence of hip abductor muscle performance on dynamic postural stability in females with patellofemoral pain. Gait & posture. 2012;36(3):425-9.
8-Nascimento LR, Teixeira-Salmela LF, Souza RB, Resende RA. Hip and Knee Strengthening Is More Effective Than Knee Strengthening Alone for Reducing Pain and Improving Activity in Individuals With Patellofemoral Pain: A Systematic Review With Meta-analysis. The Journal of orthopaedic and sports physical therapy. 2018;48(1):19-31.
9-Van Cant J, Pineux C, Pitance L, Feipel V. Hip muscle strength and endurance in females with patellofemoral pain: a systematic review with meta-analysis. International journal of sports physical therapy. 2014;9(5):564-82.
10-Powers CM, Ho KY, Chen YJ, Souza RB, Farrokhi S. Patellofemoral joint stress during weight-bearing and non-weight-bearing quadriceps exercises. The Journal of orthopaedic and sports physical therapy. 2014;44(5):320-7.
11-Nakagawa TH, Muniz TB, Baldon RM, Maciel CD, Amorim CF, Serrao FV. Electromyographic preactivation pattern of the gluteus medius during weight-bearing functional tasks in women with and without anterior knee pain. Revista brasileira de fisioterapia (Sao Carlos (Sao Paulo, Brazil)). 2011;15(1):59-65.
12-Mcgill MS. Core Training: Evidence Translating to Better Performance and Injury Prevention. Strength and conditioning journal. 2010;32(3):33-46.
13-Willson JD, Ireland ML, Davis I. Core strength and lower extremity alignment during single leg squats. Medicine and science in sports and exercise. 2006;38(5):945-52.
14-Wilkerson GB, Giles JL, Seibel DK. Prediction of core and lower extremity strains and sprains in collegiate football players: a preliminary study. Journal of athletic training. 2012;47(3):264-72.
15-Willson JD, Dougherty CP, Ireland ML, Davis IM. Core stability and its relationship to lower extremity function and injury. The Journal of the American Academy of Orthopaedic Surgeons. 2005;13(5):316-25.
16-Khaiyat OA, Norris J. Electromyographic activity of selected trunk, core, and thigh muscles in commonly used exercises for ACL rehabilitation. Journal of physical therapy science. 2018;30(4):642-8.
17-Terada M, Kosik KB, McCann RS, Gribble PA. Diaphragm Contractility in Individuals with Chronic Ankle Instability. Medicine and science in sports and exercise. 2016;48(10):2040-5.
18-Akhtar MW, Karimi H, Gilani SA. Effectiveness of core stabilization exercises and routine exercise therapy in management of pain in chronic non-specific low back pain: A randomized controlled clinical trial. Pakistan journal of medical sciences. 2017;33(4):1002-6.
19-Bobbert MF, van Zandwijk JP. Dynamics of force and muscle stimulation in human vertical jumping. Medicine and science in sports and exercise. 1999;31(2):303-10.
20-Wilkerson GB, Colston MA. A Refined Prediction Model for Core and Lower Extremity Sprains and Strains Among Collegiate Football Players. Journal of athletic training. 2015;50(6):643-50.
21-Bolgla LA, Malone TR, Umberger BR, Uhl TL. Comparison of hip and knee strength and neuromuscular activity in subjects with and without patellofemoral pain syndrome. International journal of sports physical therapy. 2011;6(4):285-96.
22-Barton CJ, Levinger P, Crossley KM, Webster KE, Menz HB. Relationships between the Foot Posture Index and foot kinematics during gait in individuals with and without patellofemoral pain syndrome. Journal of foot and ankle research. 2011;4:10.
23-Felicio LR, Masullo Cde L, Saad MC, Bevilaqua-Grossi D. The effect of a patellar bandage on the postural control of individuals with patellofemoral pain syndrome. Journal of physical therapy science. 2014;26(3):461-4.
24-Biabanimoghadam M, Motealleh A, Cowan SM. Core muscle recruitment pattern during voluntary heel raises is different between patients with patellofemoral pain and healthy individuals. The Knee. 2016;23(3):382-6.
25-Leetun DT, Ireland ML, Willson JD, Ballantyne BT, Davis IM. Core stability measures as risk factors for lower extremity injury in athletes. Medicine and science in sports and exercise. 2004;36(6):926-34.
26-Barton CJ, Lack S, Malliaras P, Morrissey D. Gluteal muscle activity and patellofemoral pain syndrome: a systematic review. British journal of sports medicine. 2013;47(4):207-14.
27-Moghaddam MHB, Aghdam FB, Jafarabadi MA, Allahverdipour H, Nikookheslat SD, Safarpour S. The Iranian Version of International Physical Activity Questionnaire (IPAQ) in Iran: Content and Construct Validity, Factor Structure, Internal Consistency and Stability. World Applied Sciences Journal 2012;18(8):1073-80.
28-Hawker GA, Mian S, Kendzerska T, French M. Measures of adult pain: Visual Analog Scale for Pain (VAS Pain), Numeric Rating Scale for Pain (NRS Pain), McGill Pain Questionnaire (MPQ), Short-Form McGill Pain Questionnaire (SF-MPQ), Chronic Pain Grade Scale (CPGS), Short Form-36 Bodily Pain Scale (SF-36 BPS), and Measure of Intermittent and Constant Osteoarthritis Pain (ICOAP). Arthritis care & research. 2011;63 Suppl 11:S240-52.
29-Ghroubi S, Jribi S, Jdidi j, Yahia A, Elleuch W, Chaaben M, et al. Study of the validity and reproducibility of the Biering-Sorensen test in chronic low back pain. Annals of Physical and Rehabilitation Medicine Volume 58, Supplement 1, September 2015, Page e88. 2015;58:88.
30-Kalauz M, Ivančić N, Paušić J. RELIABILITY AND VALIDITY OF THE LATERAL ENDURANCE TRUNK TEST. Research in Physical Education, Sport and Health. 2016;5(1):103-6.
31-Kasahara S, Samukawa M, Shigaki T, Torii Y. Gender Differences in the Curl-up and the Double-leg-lower Tests. journal of physical therap scinece. 2011; 23 (3):463-7.
32-Adedoyin RA, Mbada CE, Farotimi AO, Johnson OE, Emechete AA. Endurance of low back musculature: normative data for adults. Journal of back and musculoskeletal rehabilitation. 2011;24(2):101-9.
33-Tate A, Turner GN, Knab SE, Jorgensen C, Strittmatter A, Michener LA. Risk factors associated with shoulder pain and disability across the lifespan of competitive swimmers. Journal of athletic training. 2012;47(2):149-58.
34-Krause DA, Youdas JW, Hollman JH, Smith J. Abdominal muscle performance as measured by the double leg-lowering test. Archives of physical medicine and rehabilitation. 2005;86(7):1345-8.
35-Jamison ST, McNally MP, Schmitt LC, Chaudhari AM. The effects of core muscle activation on dynamic trunk position and knee abduction moments: implications for ACL injury. Journal of biomechanics. 2013;46(13):2236-41.
36-Raschner C, Platzer HP, Patterson C, Werner I, Huber R, Hildebrandt C. The relationship between ACL injuries and physical fitness in young competitive ski racers: a 10-year longitudinal study. British journal of sports medicine. 2012;46(15):1065-71.
37-Blenkinsop GM, Pain MTG, Hiley MJ. Balance control strategies during perturbed and unperturbed balance in standing and handstand. Royal Society open science. 2017;4(7):161018.
38-Prins MR, van der Wurff P. Females with patellofemoral pain syndrome have weak hip muscles: a systematic review. The Australian journal of physiotherapy. 2009;55(1):9-15.
39-Omidi A, Esfandiarpour F, Rezazade A, Zahednejad S. Correlation of lower limb muscles strength and flexibility with pain and function in females with Patellofemoral Pain. koomesh. 2017; 19 (3) :543-553.
40-Soleimani F, Derisfard F, Negahban H, Esfandiarpour F. Effectiveness of knee exercises versus combined knee and hip exercises in treatment of patellofemoral pain: A randomized clinical trial. koomesh. 2017; 19 (3) :554-564.
41-Yilmaz Yelvar GD, Baltaci G, Bayrakci Tunay V, Atay AO. The effect of postural stabilization exercises on pain and function in females with patellofemoral pain syndrome. Acta orthopaedica et traumatologica turcica. 2015;49(2):166-74.
42-Chevidikunnan MF, Al Saif A, Gaowgzeh RA, Mamdouh KA. Effectiveness of core muscle strengthening for improving pain and dynamic balance among female patients with patellofemoral pain syndrome. Journal of physical therapy science. 2016;28(5):1518-23.
43-Fousekis K, Tsepis E, Vagenas G. Lower limb strength in professional soccer players: profile, asymmetry, and training age. Journal of sports science & medicine. 2010;9(3):364-73.
44-Boling M, Padua D, Marshall S, Guskiewicz K, Pyne S, Beutler A. Gender differences in the incidence and prevalence of patellofemoral pain syndrome. Scandinavian journal of medicine & science in sports. 2010;20(5):725-30.