Time Difference Between Onsets Of Lateral And Medial Hamstring Muscles During Gait In Patients With Patellofemoral Pain: A Preliminary Study

Objective: Early activation of lateral hamstrings (LH) relative to medial (MH) has been thought be the cause abnormal knee abduction and external rotation tibia, which affects orientation patellar tendon increases patellofemoral compression. Therefore, early LH MH is considered have a role in pain (PFP). The aim this study was investigate time difference between onsets patients with PFP during gait. Methods: Thirteen bilateral (mean age 28.73±7.44 years) 13 asymptomatic subjects 30.47±6.22 were recruited study. Gait analysis performed using ELITE system (BTS, Milano-Italy) video cameras (TVC, BTS, Milano-Italy). Participants requested walk at self-selected speed on force platform, EMG data recorded from muscles for 10 initial contacts by TELEEMG Time calculated each contact moving averaging method, then their mean obtained participant. Results: – 26.9±22.2 ms 11.2±14.2 control subjects, mainly became activated earlier compared most both groups. There statistically significant differences groups (p=0.041). Conclusion: Our findings suggest that displayed an