Design: experimental randomized control trial.
Participants: recruitment of patellofemoral pain syndrome patients will be among patients referred to orthopedics department. The inclusion criteria: anterior or retro patellar pain, insidious in nature, which was aggravated by at least two of the following
common functional activities of daily life: prolonged sitting, stair climbing, squatting, running, kneeling, hopping / jumping.
Exclusion criteria: any traumatic, inflammatory, infectious pathology or osteoarthritis in the lower extremity.
Sample size: a pilot study would be conducted to estimate the size of each study group.
Intervention: subjects in control group will be instructed to perform strengthening exercises employed at home. These include isometric vastus medialis oblique contraction, squatting and isometric hip abduction. In addition, stretching exercises include hamstrings muscles stretch and anterior hip structures stretch. Each exercise will be performed twice daily for 6 weeks.
For one of the experimental groups in addition to the exercises, McConnell tape (Sterotape, Steroplast Ltd Bredburg, Cheshire, England) will immediately be attached over the affected patellar region, in the order of medial glide. For second experimental group in addition to the exercises, kinesiology taping (NASARA, 28, 139beon-gil, Soraji-ro, Paju-si, Gyeonggi-do, KOREA413-832), as the first group, will be attached over the affected patellar region.
Outcome measures will be assessed at baseline and at the end of treatment. Primary outcome measures are functional limitation and disability that will be measured with modified functional index questionnaire (MFIQ) and kujala patellofemoral scale (KPFS). Patellofemoral pain will be measured with visual analog scale (VAS).