The purpose of this study is analyze the immediate effect of selective neuromuscular electrical stimulation of vastus medialis obliquus (VMO) in the electrical activity of VMO and vastus lateralis (VL) and in the isokinetic performance of women with patellofemoral pain syndrome.

Inclusion Criteria:

• For Healthy group:
• with no history of osteomyoarticular lesion or surgery in the lower limbs in the previous six months
• non-corrected neurological, vestibular, visual and/or hearing impairment
• For Patellofemoral pain syndrome group:
• clinical diagnosis of patellofemoral pain syndrome
• absence of other disorders in the knee
• refer pain at leafs two of the following activities: when remain seated for a long period, squat, kneel and go up or down stairs.

Exclusion Criteria:

• Individuals experiencing pain during collection procedures
• do not perform exercises as instructed by the researches